Finding the Fourth Proportional to 2,560.33, 3,532.55 and 1,441.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,560.33 : 3,532.55 = 1,441.20 : x
2. Step 2: Convert to fraction form
   2,560.33/3,532.55 = 1,441.20/x
3. Step 3: Cross multiply
   2,560.33x = 3,532.55 × 1,441.20
4. Step 4: Simplify right side
   2,560.33x = 5,091,103.85
5. Step 5: Solve for x
   x = 5,091,103.85/2,560.33
6. Step 6: Final answer
   x = 1,988.46