How to know end coordinates of animation?

I want to know coordinates of root bone in the end of animation. I tried to put unit with Animator controller programmaticaly to the scene, play animation and execute Update() several times. But coordinates are slightly different from the real. Is there method to know accurate coordinates in the end of animation?

This code should work as it should, but it doesnt work accurately:

Code (CSharp):

1.        animator.transform.position = new Vector3(0, 0, 0);
2.        animator.transform.rotation = Quaternion.Euler(0, 0, 0);          
3.        animator.Play(_hashName, 0, 0);
4.        AnimatorStateInfo stateInfo = animator.GetCurrentAnimatorStateInfo(0);
5.        duration = stateInfo.length;
6.        float t = 0;
7.        float delta = 0.01f;
8.        while (t < duration)
9.        {
10.            animator.Update(delta);
11.            t += delta;
12.        }
13.        Vector3 endCoords = animator.transform.position;

For example, this method returns end coords like (5.33; -2.09; 0) instead (5.32; -2.11; 0) in a game scene.
How can I know exact end coordinates?

 

Thanks a lot for the answer! Everything works perfectly now.
P.S. I read documentation, but I was misled by the phrase "The position is only valid when a frame has being evaluated after the SetTarget call". Of course SetTarget() called in Update() method.

 

There's no helpful information at that doc page, so I googled the method hoping someone somewhere might explain it, and all I found was a different forum thread where someone asks for an explanation and gets pointed back to this thread. Might be an idea to get someone to flesh out the docs for this feature.

 

Hello! Wanted to ask if SetTarget correctly works with humanoid retargeting, i made test and in "basic" model it works fine, but with retargeted character the position is not correct comparing to animation (basic and retargeted have same bone structure and rigged similary, though have difference in proportions). Or maybe what should i know to make it work with retargeting correctly?