Finding the Fourth Proportional to 1,007,152.88, 1,389,870.93 and 548,270.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,007,152.88 : 1,389,870.93 = 548,270.78 : x
2. Step 2: Convert to fraction form
   1,007,152.88/1,389,870.93 = 548,270.78/x
3. Step 3: Cross multiply
   1,007,152.88x = 1,389,870.93 × 548,270.78
4. Step 4: Simplify right side
   1,007,152.88x = 762,025,618,890.43
5. Step 5: Solve for x
   x = 762,025,618,890.43/1,007,152.88
6. Step 6: Final answer
   x = 756,613.65