Answer
[tex]\begin{gathered} Given\text{ }B(t)=1700(1.04)^{4t} \\ By\text{ }indices \\ B(t)=1700(1.04^4)^t \end{gathered}[/tex][tex]\begin{gathered} B(t)=1700(1.16985856)^t \\ B(t)\cong1,700(1.1699)^t \end{gathered}[/tex]Therefore, B(t) = 1700(1.1699)^t