This problem considers simple interest formula. It is:
[tex]A=I*( 1+ \frac{r}{100} )^{n} [/tex]
Where
A= total amount after some time
I = initial amount
r = rate
n = number of years
Total prize we will receive is:
Total = $1000 + $500 after one year + $500 after two years + $500 after three years.
Now we need to calculate how much we will earn after each year:
Year 1:
[tex]A=500* (1+ \frac{9}{100})^{1} = 545[/tex]
Year 2:
[tex]A=500* (1+ \frac{9}{100})^{2} = 594,05[/tex]
Year 3:
[tex]A=500* (1+ \frac{9}{100})^{3} = 647,51[/tex]
So total amount is:
Total = $10000 + $545 + $594,05 + $647,51
Total = $2786,56