Finding the Fourth Proportional to 1,132.56, 1,563.24 and 666.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,132.56 : 1,563.24 = 666.96 : x
2. Step 2: Convert to fraction form
   1,132.56/1,563.24 = 666.96/x
3. Step 3: Cross multiply
   1,132.56x = 1,563.24 × 666.96
4. Step 4: Simplify right side
   1,132.56x = 1,042,618.55
5. Step 5: Solve for x
   x = 1,042,618.55/1,132.56
6. Step 6: Final answer
   x = 920.59