Finding the Fourth Proportional to 2,726.31, 4,085.67 and 1,425.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,726.31 : 4,085.67 = 1,425.18 : x
2. Step 2: Convert to fraction form
   2,726.31/4,085.67 = 1,425.18/x
3. Step 3: Cross multiply
   2,726.31x = 4,085.67 × 1,425.18
4. Step 4: Simplify right side
   2,726.31x = 5,822,815.17
5. Step 5: Solve for x
   x = 5,822,815.17/2,726.31
6. Step 6: Final answer
   x = 2,135.79