Question

A six sided fair die is rolled 4 times in a row the probability of getting a 4 only on the last trail is

Answer 1

What does trail mean, I am assuming it means the last try.
5/6^3*1/6) this shows that there is a 5/6 chance of not getting a 4 on the first 3 tries and and a 1/6 chance of getting a 4 on the last one. 
125/1296. That is what I think I might be wrong.