Finding the Fourth Proportional to 1,153,233.72, 1,591,040.88 and 723,357

Step by Step Solution

1. Step 1: Write the proportion equation
   1,153,233.72 : 1,591,040.88 = 723,357 : x
2. Step 2: Convert to fraction form
   1,153,233.72/1,591,040.88 = 723,357/x
3. Step 3: Cross multiply
   1,153,233.72x = 1,591,040.88 × 723,357
4. Step 4: Simplify right side
   1,153,233.72x = 1,150,890,557,834.16
5. Step 5: Solve for x
   x = 1,150,890,557,834.16/1,153,233.72
6. Step 6: Final answer
   x = 997,968.18