Finding the Fourth Proportional to 1,524.62, 2,103.71 and 861.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,524.62 : 2,103.71 = 861.37 : x
2. Step 2: Convert to fraction form
   1,524.62/2,103.71 = 861.37/x
3. Step 3: Cross multiply
   1,524.62x = 2,103.71 × 861.37
4. Step 4: Simplify right side
   1,524.62x = 1,812,063.12
5. Step 5: Solve for x
   x = 1,812,063.12/1,524.62
6. Step 6: Final answer
   x = 1,188.53