Finding the Fourth Proportional to 2,559.59, 3,532.01 and 1,440.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,559.59 : 3,532.01 = 1,440.17 : x
2. Step 2: Convert to fraction form
   2,559.59/3,532.01 = 1,440.17/x
3. Step 3: Cross multiply
   2,559.59x = 3,532.01 × 1,440.17
4. Step 4: Simplify right side
   2,559.59x = 5,086,669.98
5. Step 5: Solve for x
   x = 5,086,669.98/2,559.59
6. Step 6: Final answer
   x = 1,987.30