Finding the Fourth Proportional to 1,439.94, 2,147.50 and 1,414.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,439.94 : 2,147.50 = 1,414.02 : x
2. Step 2: Convert to fraction form
   1,439.94/2,147.50 = 1,414.02/x
3. Step 3: Cross multiply
   1,439.94x = 2,147.50 × 1,414.02
4. Step 4: Simplify right side
   1,439.94x = 3,036,600.75
5. Step 5: Solve for x
   x = 3,036,600.75/1,439.94
6. Step 6: Final answer
   x = 2,108.85