Finding the Fourth Proportional to 1,452.56, 2,004.22 and 863.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,452.56 : 2,004.22 = 863.30 : x
2. Step 2: Convert to fraction form
   1,452.56/2,004.22 = 863.30/x
3. Step 3: Cross multiply
   1,452.56x = 2,004.22 × 863.30
4. Step 4: Simplify right side
   1,452.56x = 1,730,243.13
5. Step 5: Solve for x
   x = 1,730,243.13/1,452.56
6. Step 6: Final answer
   x = 1,191.17