Finding the Fourth Proportional to 2,574.35, 3,552.89 and 1,440.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,574.35 : 3,552.89 = 1,440.44 : x
2. Step 2: Convert to fraction form
   2,574.35/3,552.89 = 1,440.44/x
3. Step 3: Cross multiply
   2,574.35x = 3,552.89 × 1,440.44
4. Step 4: Simplify right side
   2,574.35x = 5,117,699.90
5. Step 5: Solve for x
   x = 5,117,699.90/2,574.35
6. Step 6: Final answer
   x = 1,987.96