Finding the Fourth Proportional to 2,426.76, 3,641.09 and 1,040.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,426.76 : 3,641.09 = 1,040.72 : x
2. Step 2: Convert to fraction form
   2,426.76/3,641.09 = 1,040.72/x
3. Step 3: Cross multiply
   2,426.76x = 3,641.09 × 1,040.72
4. Step 4: Simplify right side
   2,426.76x = 3,789,331.78
5. Step 5: Solve for x
   x = 3,789,331.78/2,426.76
6. Step 6: Final answer
   x = 1,561.48