Finding the Fourth Proportional to 2,502.70, 3,454.25 and 1,440.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,502.70 : 3,454.25 = 1,440.59 : x
2. Step 2: Convert to fraction form
   2,502.70/3,454.25 = 1,440.59/x
3. Step 3: Cross multiply
   2,502.70x = 3,454.25 × 1,440.59
4. Step 4: Simplify right side
   2,502.70x = 4,976,133.53
5. Step 5: Solve for x
   x = 4,976,133.53/2,502.70
6. Step 6: Final answer
   x = 1,988.31