Finding the Fourth Proportional to 2,645,515.91, 3,967,849.04 and 725,978.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,645,515.91 : 3,967,849.04 = 725,978.81 : x
2. Step 2: Convert to fraction form
   2,645,515.91/3,967,849.04 = 725,978.81/x
3. Step 3: Cross multiply
   2,645,515.91x = 3,967,849.04 × 725,978.81
4. Step 4: Simplify right side
   2,645,515.91x = 2,880,574,300,849.70
5. Step 5: Solve for x
   x = 2,880,574,300,849.70/2,645,515.91
6. Step 6: Final answer
   x = 1,088,851.63