Finding the Fourth Proportional to 2,040.78, 3,061.25 and 724.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,040.78 : 3,061.25 = 724.68 : x
2. Step 2: Convert to fraction form
   2,040.78/3,061.25 = 724.68/x
3. Step 3: Cross multiply
   2,040.78x = 3,061.25 × 724.68
4. Step 4: Simplify right side
   2,040.78x = 2,218,426.65
5. Step 5: Solve for x
   x = 2,218,426.65/2,040.78
6. Step 6: Final answer
   x = 1,087.05