Finding the Fourth Proportional to 2,559.52, 3,532.17 and 1,440.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,559.52 : 3,532.17 = 1,440.46 : x
2. Step 2: Convert to fraction form
   2,559.52/3,532.17 = 1,440.46/x
3. Step 3: Cross multiply
   2,559.52x = 3,532.17 × 1,440.46
4. Step 4: Simplify right side
   2,559.52x = 5,087,949.60
5. Step 5: Solve for x
   x = 5,087,949.60/2,559.52
6. Step 6: Final answer
   x = 1,987.85