Finding the Fourth Proportional to 1,105.08, 1,524.48 and 685.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.08 : 1,524.48 = 685.27 : x
2. Step 2: Convert to fraction form
   1,105.08/1,524.48 = 685.27/x
3. Step 3: Cross multiply
   1,105.08x = 1,524.48 × 685.27
4. Step 4: Simplify right side
   1,105.08x = 1,044,680.41
5. Step 5: Solve for x
   x = 1,044,680.41/1,105.08
6. Step 6: Final answer
   x = 945.34