Finding the Fourth Proportional to 2,560.40, 3,533.42 and 1,441.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,560.40 : 3,533.42 = 1,441.25 : x
2. Step 2: Convert to fraction form
   2,560.40/3,533.42 = 1,441.25/x
3. Step 3: Cross multiply
   2,560.40x = 3,533.42 × 1,441.25
4. Step 4: Simplify right side
   2,560.40x = 5,092,540.76
5. Step 5: Solve for x
   x = 5,092,540.76/2,560.40
6. Step 6: Final answer
   x = 1,988.96