Finding the Fourth Proportional to 1,016.67, 1,524.35 and 668.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.67 : 1,524.35 = 668.96 : x
2. Step 2: Convert to fraction form
   1,016.67/1,524.35 = 668.96/x
3. Step 3: Cross multiply
   1,016.67x = 1,524.35 × 668.96
4. Step 4: Simplify right side
   1,016.67x = 1,019,723.23
5. Step 5: Solve for x
   x = 1,019,723.23/1,016.67
6. Step 6: Final answer
   x = 1,003.00