Finding the Fourth Proportional to 3,901.59, 5,385.15 and 2,308.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,901.59 : 5,385.15 = 2,308.32 : x
2. Step 2: Convert to fraction form
   3,901.59/5,385.15 = 2,308.32/x
3. Step 3: Cross multiply
   3,901.59x = 5,385.15 × 2,308.32
4. Step 4: Simplify right side
   3,901.59x = 12,430,649.45
5. Step 5: Solve for x
   x = 12,430,649.45/3,901.59
6. Step 6: Final answer
   x = 3,186.05