Finding the Fourth Proportional to 3,920.91, 5,411.31 and 2,349

Step by Step Solution

1. Step 1: Write the proportion equation
   3,920.91 : 5,411.31 = 2,349 : x
2. Step 2: Convert to fraction form
   3,920.91/5,411.31 = 2,349/x
3. Step 3: Cross multiply
   3,920.91x = 5,411.31 × 2,349
4. Step 4: Simplify right side
   3,920.91x = 12,711,158.38
5. Step 5: Solve for x
   x = 12,711,158.38/3,920.91
6. Step 6: Final answer
   x = 3,241.89