Finding the Fourth Proportional to 2,614.96, 3,922.58 and 667.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,614.96 : 3,922.58 = 667.18 : x
2. Step 2: Convert to fraction form
   2,614.96/3,922.58 = 667.18/x
3. Step 3: Cross multiply
   2,614.96x = 3,922.58 × 667.18
4. Step 4: Simplify right side
   2,614.96x = 2,617,066.92
5. Step 5: Solve for x
   x = 2,617,066.92/2,614.96
6. Step 6: Final answer
   x = 1,000.81