Finding the Fourth Proportional to 2,311.42, 3,466.72 and 667.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,311.42 : 3,466.72 = 667.57 : x
2. Step 2: Convert to fraction form
   2,311.42/3,466.72 = 667.57/x
3. Step 3: Cross multiply
   2,311.42x = 3,466.72 × 667.57
4. Step 4: Simplify right side
   2,311.42x = 2,314,278.27
5. Step 5: Solve for x
   x = 2,314,278.27/2,311.42
6. Step 6: Final answer
   x = 1,001.24