Finding the Fourth Proportional to 2,684.71, 4,026.72 and 1,040.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,684.71 : 4,026.72 = 1,040.13 : x
2. Step 2: Convert to fraction form
   2,684.71/4,026.72 = 1,040.13/x
3. Step 3: Cross multiply
   2,684.71x = 4,026.72 × 1,040.13
4. Step 4: Simplify right side
   2,684.71x = 4,188,312.27
5. Step 5: Solve for x
   x = 4,188,312.27/2,684.71
6. Step 6: Final answer
   x = 1,560.06