Finding the Fourth Proportional to 2,311.18, 3,466.64 and 667.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,311.18 : 3,466.64 = 667.69 : x
2. Step 2: Convert to fraction form
   2,311.18/3,466.64 = 667.69/x
3. Step 3: Cross multiply
   2,311.18x = 3,466.64 × 667.69
4. Step 4: Simplify right side
   2,311.18x = 2,314,637.52
5. Step 5: Solve for x
   x = 2,314,637.52/2,311.18
6. Step 6: Final answer
   x = 1,001.50