Problem $7$:

Given the following linear programming results for a profit maximization problem:

$\backslash$table$[[,$A$,$B$,$C$,$D$,$E$,$F$,$G$,$H$,$I$],[3,$Production Activity,$x_1,x_2,x_3,x_4,,,,],[4,$Amount Produced,$76\mathrm{.}92,730\mathrm{.}77,0\mathrm{.}00,0\mathrm{.}00,,,11692\mathrm{.}31,],[5,$Per Unit Profit,$19,14,5,11,,,,],[6,,,,,,,,,],[7,,x_1,x_2,x_3,x_4,,,,],[8,$Constraints,$),$Resource Usage,$),),),,],[9,$Constraint $1,1,8,2,3,5923\mathrm{.}08,,8,000,2076\mathrm{.}92$