Finding the Fourth Proportional to 1,332,346.72, 1,838,682 and 728,734.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,332,346.72 : 1,838,682 = 728,734.72 : x
2. Step 2: Convert to fraction form
   1,332,346.72/1,838,682 = 728,734.72/x
3. Step 3: Cross multiply
   1,332,346.72x = 1,838,682 × 728,734.72
4. Step 4: Simplify right side
   1,332,346.72x = 1,339,911,412,439.04
5. Step 5: Solve for x
   x = 1,339,911,412,439.04/1,332,346.72
6. Step 6: Final answer
   x = 1,005,677.72