Finding the Fourth Proportional to 498,941.67, 688,540.17 and 284,081.82

Step by Step Solution

1. Step 1: Write the proportion equation
   498,941.67 : 688,540.17 = 284,081.82 : x
2. Step 2: Convert to fraction form
   498,941.67/688,540.17 = 284,081.82/x
3. Step 3: Cross multiply
   498,941.67x = 688,540.17 × 284,081.82
4. Step 4: Simplify right side
   498,941.67x = 195,601,744,636.71
5. Step 5: Solve for x
   x = 195,601,744,636.71/498,941.67
6. Step 6: Final answer
   x = 392,033.29