Finding the Fourth Proportional to 1,146,134.69, 1,581,601.51 and 687,019.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,146,134.69 : 1,581,601.51 = 687,019.49 : x
2. Step 2: Convert to fraction form
   1,146,134.69/1,581,601.51 = 687,019.49/x
3. Step 3: Cross multiply
   1,146,134.69x = 1,581,601.51 × 687,019.49
4. Step 4: Simplify right side
   1,146,134.69x = 1,086,591,062,783.43
5. Step 5: Solve for x
   x = 1,086,591,062,783.43/1,146,134.69
6. Step 6: Final answer
   x = 948,048.32