Finding the Fourth Proportional to 2,559.42, 3,532.10 and 1,440.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,559.42 : 3,532.10 = 1,440.34 : x
2. Step 2: Convert to fraction form
   2,559.42/3,532.10 = 1,440.34/x
3. Step 3: Cross multiply
   2,559.42x = 3,532.10 × 1,440.34
4. Step 4: Simplify right side
   2,559.42x = 5,087,424.91
5. Step 5: Solve for x
   x = 5,087,424.91/2,559.42
6. Step 6: Final answer
   x = 1,987.73