Answer
The total spending is $\$9.33\bar{3}$ million.
Work Step by Step
Here, the provided sum is a geometric sequence:
$\begin{align}
& 4\left( 0.7 \right)+4{{\left( 0.7 \right)}^{2}}+....\ ;\ r=0.7 \\
& {{S}_{\infty }}=\frac{{{a}_{1}}{{\left( r \right)}^{n-1}}}{1-r} \\
& {{S}_{\infty }}=\frac{4\left( 0.7 \right)}{1-0.7} \\
& {{S}_{\infty }}=9.\overline{3} \\
\end{align}$
