Finding the Fourth Proportional to 2,619,973.72, 3,929,960.32 and 726,715.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,619,973.72 : 3,929,960.32 = 726,715.24 : x
2. Step 2: Convert to fraction form
   2,619,973.72/3,929,960.32 = 726,715.24/x
3. Step 3: Cross multiply
   2,619,973.72x = 3,929,960.32 × 726,715.24
4. Step 4: Simplify right side
   2,619,973.72x = 2,855,962,057,139.28
5. Step 5: Solve for x
   x = 2,855,962,057,139.28/2,619,973.72
6. Step 6: Final answer
   x = 1,090,072.79