Finding the Fourth Proportional to 2,561.55, 3,534.81 and 1,442.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,561.55 : 3,534.81 = 1,442.46 : x
2. Step 2: Convert to fraction form
   2,561.55/3,534.81 = 1,442.46/x
3. Step 3: Cross multiply
   2,561.55x = 3,534.81 × 1,442.46
4. Step 4: Simplify right side
   2,561.55x = 5,098,822.03
5. Step 5: Solve for x
   x = 5,098,822.03/2,561.55
6. Step 6: Final answer
   x = 1,990.52