Finding the Fourth Proportional to 2,561.89, 3,535.37 and 1,442.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,561.89 : 3,535.37 = 1,442.83 : x
2. Step 2: Convert to fraction form
   2,561.89/3,535.37 = 1,442.83/x
3. Step 3: Cross multiply
   2,561.89x = 3,535.37 × 1,442.83
4. Step 4: Simplify right side
   2,561.89x = 5,100,937.90
5. Step 5: Solve for x
   x = 5,100,937.90/2,561.89
6. Step 6: Final answer
   x = 1,991.08