Finding the Fourth Proportional to 2,559.71, 3,532.53 and 1,440.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,559.71 : 3,532.53 = 1,440.83 : x
2. Step 2: Convert to fraction form
   2,559.71/3,532.53 = 1,440.83/x
3. Step 3: Cross multiply
   2,559.71x = 3,532.53 × 1,440.83
4. Step 4: Simplify right side
   2,559.71x = 5,089,775.20
5. Step 5: Solve for x
   x = 5,089,775.20/2,559.71
6. Step 6: Final answer
   x = 1,988.42