Finding the Fourth Proportional to 1,414.89, 2,116.85 and 1,240.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,414.89 : 2,116.85 = 1,240.25 : x
2. Step 2: Convert to fraction form
   1,414.89/2,116.85 = 1,240.25/x
3. Step 3: Cross multiply
   1,414.89x = 2,116.85 × 1,240.25
4. Step 4: Simplify right side
   1,414.89x = 2,625,406.43
5. Step 5: Solve for x
   x = 2,625,406.43/1,414.89
6. Step 6: Final answer
   x = 1,855.56