Finding the Fourth Proportional to 4,162.72, 6,243.36 and 1,426.72

Step by Step Solution

1. Step 1: Write the proportion equation
   4,162.72 : 6,243.36 = 1,426.72 : x
2. Step 2: Convert to fraction form
   4,162.72/6,243.36 = 1,426.72/x
3. Step 3: Cross multiply
   4,162.72x = 6,243.36 × 1,426.72
4. Step 4: Simplify right side
   4,162.72x = 8,907,526.58
5. Step 5: Solve for x
   x = 8,907,526.58/4,162.72
6. Step 6: Final answer
   x = 2,139.83