Finding the Fourth Proportional to 926,508.50, 1,278,581.73 and 502,572.50

Step by Step Solution

1. Step 1: Write the proportion equation
   926,508.50 : 1,278,581.73 = 502,572.50 : x
2. Step 2: Convert to fraction form
   926,508.50/1,278,581.73 = 502,572.50/x
3. Step 3: Cross multiply
   926,508.50x = 1,278,581.73 × 502,572.50
4. Step 4: Simplify right side
   926,508.50x = 642,580,016,500.43
5. Step 5: Solve for x
   x = 642,580,016,500.43/926,508.50
6. Step 6: Final answer
   x = 693,550.05