Finding the Fourth Proportional to 1,147.27, 1,582.73 and 681.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,147.27 : 1,582.73 = 681.25 : x
2. Step 2: Convert to fraction form
   1,147.27/1,582.73 = 681.25/x
3. Step 3: Cross multiply
   1,147.27x = 1,582.73 × 681.25
4. Step 4: Simplify right side
   1,147.27x = 1,078,231.41
5. Step 5: Solve for x
   x = 1,078,231.41/1,147.27
6. Step 6: Final answer
   x = 939.82