Finding the Fourth Proportional to 4,951.12, 7,426.42 and 1,664.28

Step by Step Solution

1. Step 1: Write the proportion equation
   4,951.12 : 7,426.42 = 1,664.28 : x
2. Step 2: Convert to fraction form
   4,951.12/7,426.42 = 1,664.28/x
3. Step 3: Cross multiply
   4,951.12x = 7,426.42 × 1,664.28
4. Step 4: Simplify right side
   4,951.12x = 12,359,642.28
5. Step 5: Solve for x
   x = 12,359,642.28/4,951.12
6. Step 6: Final answer
   x = 2,496.33