Accumulated Balance is given by :
[tex]A=P\dfrac{(1+i)^n-1}{i}\times (1+i)[/tex]
Here,
n = time period = 30×12 = 360.
[tex]i=\dfrac{13.45}{100}\times \dfrac{1}{12}=0.0112[/tex]
P = principal price = $250.
Putting all given values in above equation, we get :
[tex]A=250\times \dfrac{(1+0.0112)^{360}-1}{0.0112}\times (1+0.0112)\\\\A=\$1221659.48[/tex]
Hence, this is the required solution.
