Finding the Fourth Proportional to 2,561.52, 3,534.79 and 1,442.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,561.52 : 3,534.79 = 1,442.45 : x
2. Step 2: Convert to fraction form
   2,561.52/3,534.79 = 1,442.45/x
3. Step 3: Cross multiply
   2,561.52x = 3,534.79 × 1,442.45
4. Step 4: Simplify right side
   2,561.52x = 5,098,757.84
5. Step 5: Solve for x
   x = 5,098,757.84/2,561.52
6. Step 6: Final answer
   x = 1,990.52