Finding the Fourth Proportional to 1,140,184.18, 1,573,454.28 and 623,938.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,140,184.18 : 1,573,454.28 = 623,938.15 : x
2. Step 2: Convert to fraction form
   1,140,184.18/1,573,454.28 = 623,938.15/x
3. Step 3: Cross multiply
   1,140,184.18x = 1,573,454.28 × 623,938.15
4. Step 4: Simplify right side
   1,140,184.18x = 981,738,152,572.78
5. Step 5: Solve for x
   x = 981,738,152,572.78/1,140,184.18
6. Step 6: Final answer
   x = 861,034.71