Based on Robichek et al. (1965). At the beginning of month 1, Finco has $400 in cash. At the beginning of months 1, 2, 3, and 4, Finco receives certain revenues, after which it pays bills. (See the file P04_124.xlsx.) Any money left over can be invested for 1 month at the interest rate of 0.1% per month;

for 2 months at 0.5% per month; for 3 months at 1%

per month; or for 4 months at 2% per month. Determine an investment strategy that maximizes cash on hand at the beginning of month 5.