Answer:
Compounded annually:
24820 = x * (1.08^3) = 1.259712x
x = 24820/1.259712 = $19703
Compounded quarterly:
24820 = x*(1.02)^12 = 1.26824x
x = 24820/1.26824 = $19570
Explanation:
I hope you can understand better and no need for further explanation.