Finding the Fourth Proportional to 1,105.07, 1,524.96 and 712.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.07 : 1,524.96 = 712.32 : x
2. Step 2: Convert to fraction form
   1,105.07/1,524.96 = 712.32/x
3. Step 3: Cross multiply
   1,105.07x = 1,524.96 × 712.32
4. Step 4: Simplify right side
   1,105.07x = 1,086,248.32
5. Step 5: Solve for x
   x = 1,086,248.32/1,105.07
6. Step 6: Final answer
   x = 982.97