Finding the Fourth Proportional to 1,338,767.76, 1,847,501.72 and 726,921.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,338,767.76 : 1,847,501.72 = 726,921.72 : x
2. Step 2: Convert to fraction form
   1,338,767.76/1,847,501.72 = 726,921.72/x
3. Step 3: Cross multiply
   1,338,767.76x = 1,847,501.72 × 726,921.72
4. Step 4: Simplify right side
   1,338,767.76x = 1,342,989,128,005.36
5. Step 5: Solve for x
   x = 1,342,989,128,005.36/1,338,767.76
6. Step 6: Final answer
   x = 1,003,153.17