Finding the Fourth Proportional to 1,200.73, 1,656.51 and 868.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200.73 : 1,656.51 = 868.42 : x
2. Step 2: Convert to fraction form
   1,200.73/1,656.51 = 868.42/x
3. Step 3: Cross multiply
   1,200.73x = 1,656.51 × 868.42
4. Step 4: Simplify right side
   1,200.73x = 1,438,546.41
5. Step 5: Solve for x
   x = 1,438,546.41/1,200.73
6. Step 6: Final answer
   x = 1,198.06