Finding the Fourth Proportional to 1,132.28, 1,562.52 and 666.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,132.28 : 1,562.52 = 666.56 : x
2. Step 2: Convert to fraction form
   1,132.28/1,562.52 = 666.56/x
3. Step 3: Cross multiply
   1,132.28x = 1,562.52 × 666.56
4. Step 4: Simplify right side
   1,132.28x = 1,041,513.33
5. Step 5: Solve for x
   x = 1,041,513.33/1,132.28
6. Step 6: Final answer
   x = 919.84