A client plans to send a child to college for four years starting 15 years from now. Having set aside money for tuition, she decides to plan for room and board also. She estimates these costs at $25,000 per year, payable at the beginning of each year, by the time her child goes to college. If she starts next year and makes 15 payments into a savings account paying 5 percent annually, what annual payments must she make?

I got 4313.60 as a result and it was wrong.

Hope someone can help me out :/