Finding the Fourth Proportional to 2,559.35, 3,532.01 and 1,440.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,559.35 : 3,532.01 = 1,440.29 : x
2. Step 2: Convert to fraction form
   2,559.35/3,532.01 = 1,440.29/x
3. Step 3: Cross multiply
   2,559.35x = 3,532.01 × 1,440.29
4. Step 4: Simplify right side
   2,559.35x = 5,087,093.82
5. Step 5: Solve for x
   x = 5,087,093.82/2,559.35
6. Step 6: Final answer
   x = 1,987.65