Finding the Fourth Proportional to 2,559.93, 3,532.71 and 1,440.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,559.93 : 3,532.71 = 1,440.89 : x
2. Step 2: Convert to fraction form
   2,559.93/3,532.71 = 1,440.89/x
3. Step 3: Cross multiply
   2,559.93x = 3,532.71 × 1,440.89
4. Step 4: Simplify right side
   2,559.93x = 5,090,231.55
5. Step 5: Solve for x
   x = 5,090,231.55/2,559.93
6. Step 6: Final answer
   x = 1,988.42