Finding the Fourth Proportional to 1,137,463.59, 1,569,738.50 and 672,715.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,137,463.59 : 1,569,738.50 = 672,715.86 : x
2. Step 2: Convert to fraction form
   1,137,463.59/1,569,738.50 = 672,715.86/x
3. Step 3: Cross multiply
   1,137,463.59x = 1,569,738.50 × 672,715.86
4. Step 4: Simplify right side
   1,137,463.59x = 1,055,987,981,639.03
5. Step 5: Solve for x
   x = 1,055,987,981,639.03/1,137,463.59
6. Step 6: Final answer
   x = 928,370.80