Finding the Fourth Proportional to 1,137,070.86, 1,569,153.42 and 627,769.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,137,070.86 : 1,569,153.42 = 627,769.50 : x
2. Step 2: Convert to fraction form
   1,137,070.86/1,569,153.42 = 627,769.50/x
3. Step 3: Cross multiply
   1,137,070.86x = 1,569,153.42 × 627,769.50
4. Step 4: Simplify right side
   1,137,070.86x = 985,066,657,896.69
5. Step 5: Solve for x
   x = 985,066,657,896.69/1,137,070.86
6. Step 6: Final answer
   x = 866,319.50