Finding the Fourth Proportional to 801,068.50, 1,105,475.61 and 499,262.50

Step by Step Solution

1. Step 1: Write the proportion equation
   801,068.50 : 1,105,475.61 = 499,262.50 : x
2. Step 2: Convert to fraction form
   801,068.50/1,105,475.61 = 499,262.50/x
3. Step 3: Cross multiply
   801,068.50x = 1,105,475.61 × 499,262.50
4. Step 4: Simplify right side
   801,068.50x = 551,922,516,737.63
5. Step 5: Solve for x
   x = 551,922,516,737.63/801,068.50
6. Step 6: Final answer
   x = 688,982.92