Finding the Fourth Proportional to 1,132.18, 1,562.39 and 628.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,132.18 : 1,562.39 = 628.01 : x
2. Step 2: Convert to fraction form
   1,132.18/1,562.39 = 628.01/x
3. Step 3: Cross multiply
   1,132.18x = 1,562.39 × 628.01
4. Step 4: Simplify right side
   1,132.18x = 981,185.59
5. Step 5: Solve for x
   x = 981,185.59/1,132.18
6. Step 6: Final answer
   x = 866.64