Finding the Fourth Proportional to 1,524.86, 2,104.29 and 861.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,524.86 : 2,104.29 = 861.83 : x
2. Step 2: Convert to fraction form
   1,524.86/2,104.29 = 861.83/x
3. Step 3: Cross multiply
   1,524.86x = 2,104.29 × 861.83
4. Step 4: Simplify right side
   1,524.86x = 1,813,529.73
5. Step 5: Solve for x
   x = 1,813,529.73/1,524.86
6. Step 6: Final answer
   x = 1,189.31