Finding the Fourth Proportional to 3,909.18, 5,393.16 and 2,414.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,909.18 : 5,393.16 = 2,414.50 : x
2. Step 2: Convert to fraction form
   3,909.18/5,393.16 = 2,414.50/x
3. Step 3: Cross multiply
   3,909.18x = 5,393.16 × 2,414.50
4. Step 4: Simplify right side
   3,909.18x = 13,021,784.82
5. Step 5: Solve for x
   x = 13,021,784.82/3,909.18
6. Step 6: Final answer
   x = 3,331.08