Finding the Fourth Proportional to 2,422.73, 3,633.61 and 667.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,422.73 : 3,633.61 = 667.28 : x
2. Step 2: Convert to fraction form
   2,422.73/3,633.61 = 667.28/x
3. Step 3: Cross multiply
   2,422.73x = 3,633.61 × 667.28
4. Step 4: Simplify right side
   2,422.73x = 2,424,635.28
5. Step 5: Solve for x
   x = 2,424,635.28/2,422.73
6. Step 6: Final answer
   x = 1,000.79