Finding the Fourth Proportional to 2,561.59, 3,534.82 and 1,442.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,561.59 : 3,534.82 = 1,442.26 : x
2. Step 2: Convert to fraction form
   2,561.59/3,534.82 = 1,442.26/x
3. Step 3: Cross multiply
   2,561.59x = 3,534.82 × 1,442.26
4. Step 4: Simplify right side
   2,561.59x = 5,098,129.49
5. Step 5: Solve for x
   x = 5,098,129.49/2,561.59
6. Step 6: Final answer
   x = 1,990.22