Finding the Fourth Proportional to 1,016.85, 1,524.18 and 727.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.85 : 1,524.18 = 727.41 : x
2. Step 2: Convert to fraction form
   1,016.85/1,524.18 = 727.41/x
3. Step 3: Cross multiply
   1,016.85x = 1,524.18 × 727.41
4. Step 4: Simplify right side
   1,016.85x = 1,108,703.77
5. Step 5: Solve for x
   x = 1,108,703.77/1,016.85
6. Step 6: Final answer
   x = 1,090.33