Finding the Fourth Proportional to 2,415.63, 3,616.55 and 1,591.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,415.63 : 3,616.55 = 1,591.39 : x
2. Step 2: Convert to fraction form
   2,415.63/3,616.55 = 1,591.39/x
3. Step 3: Cross multiply
   2,415.63x = 3,616.55 × 1,591.39
4. Step 4: Simplify right side
   2,415.63x = 5,755,341.50
5. Step 5: Solve for x
   x = 5,755,341.50/2,415.63
6. Step 6: Final answer
   x = 2,382.54