Finding the Fourth Proportional to 1,182.73, 1,631.90 and 710.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,182.73 : 1,631.90 = 710.47 : x
2. Step 2: Convert to fraction form
   1,182.73/1,631.90 = 710.47/x
3. Step 3: Cross multiply
   1,182.73x = 1,631.90 × 710.47
4. Step 4: Simplify right side
   1,182.73x = 1,159,404.28
5. Step 5: Solve for x
   x = 1,159,404.28/1,182.73
6. Step 6: Final answer
   x = 980.28