Finding the Fourth Proportional to 3,414.91, 5,111.89 and 2,490.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,414.91 : 5,111.89 = 2,490.25 : x
2. Step 2: Convert to fraction form
   3,414.91/5,111.89 = 2,490.25/x
3. Step 3: Cross multiply
   3,414.91x = 5,111.89 × 2,490.25
4. Step 4: Simplify right side
   3,414.91x = 12,729,884.07
5. Step 5: Solve for x
   x = 12,729,884.07/3,414.91
6. Step 6: Final answer
   x = 3,727.74