Finding the Fourth Proportional to 1,055.46, 1,453.23 and 868.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,055.46 : 1,453.23 = 868.35 : x
2. Step 2: Convert to fraction form
   1,055.46/1,453.23 = 868.35/x
3. Step 3: Cross multiply
   1,055.46x = 1,453.23 × 868.35
4. Step 4: Simplify right side
   1,055.46x = 1,261,912.27
5. Step 5: Solve for x
   x = 1,261,912.27/1,055.46
6. Step 6: Final answer
   x = 1,195.60