Finding the Fourth Proportional to 1,529.55, 2,110.82 and 866.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,529.55 : 2,110.82 = 866.50 : x
2. Step 2: Convert to fraction form
   1,529.55/2,110.82 = 866.50/x
3. Step 3: Cross multiply
   1,529.55x = 2,110.82 × 866.50
4. Step 4: Simplify right side
   1,529.55x = 1,829,025.53
5. Step 5: Solve for x
   x = 1,829,025.53/1,529.55
6. Step 6: Final answer
   x = 1,195.79