Implement the following LP problem in a spreadsheet. Use Solver to solve the problem and create a Sensitivity Report. Use this information to answer the following questions:

MAX: $5$X$1+3$X$2$

Subject to: $2$X$1+4$X$2<=20$

$3$X$1+5$X$2<=15$

X$1,$ X$2>=0$ How much does the objective function coefficient for variable X$2$ have to increase before it enters the optimal solution at a strictly positive level? $($Round your answer to three decimal places.$)$