Finding the Fourth Proportional to 2,490.67, 3,737.92 and 931.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,490.67 : 3,737.92 = 931.83 : x
2. Step 2: Convert to fraction form
   2,490.67/3,737.92 = 931.83/x
3. Step 3: Cross multiply
   2,490.67x = 3,737.92 × 931.83
4. Step 4: Simplify right side
   2,490.67x = 3,483,105.99
5. Step 5: Solve for x
   x = 3,483,105.99/2,490.67
6. Step 6: Final answer
   x = 1,398.46