You can put this solution on YOUR website! The formula for compound interest is :
where FV represents the future value, PV represents the present value (how much you put into the account right now), i represents the interest rate per period and n represents the number of periods (in our case years).
So we have PV=1500
n=3
and i=0.1 (which is the same as 10%)
Substituting this into our formula we have:
You need to solve for FV (I will let you do the rest- let me know if you are unsure about anything:)