Finding the Fourth Proportional to 1,132.89, 1,562.12 and 712.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,132.89 : 1,562.12 = 712.73 : x
2. Step 2: Convert to fraction form
   1,132.89/1,562.12 = 712.73/x
3. Step 3: Cross multiply
   1,132.89x = 1,562.12 × 712.73
4. Step 4: Simplify right side
   1,132.89x = 1,113,369.79
5. Step 5: Solve for x
   x = 1,113,369.79/1,132.89
6. Step 6: Final answer
   x = 982.77