Compound interest:
\(A=P\left(1+\dfrac rn\right)^{nt}\)
where \(P\) is the amount you start with, \(r\) is the interest rate, \(n\) is the number of times interest is compounded per year, and \(t\) is amount of time that passes.
\(4272\left(1+\dfrac{0.12}1\right)^{1\times3}=4272\times1.12^3\approx6001.85\)
