Finding the Fourth Proportional to 2,015.50, 3,024.60 and 861.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,015.50 : 3,024.60 = 861.52 : x
2. Step 2: Convert to fraction form
   2,015.50/3,024.60 = 861.52/x
3. Step 3: Cross multiply
   2,015.50x = 3,024.60 × 861.52
4. Step 4: Simplify right side
   2,015.50x = 2,605,753.39
5. Step 5: Solve for x
   x = 2,605,753.39/2,015.50
6. Step 6: Final answer
   x = 1,292.86