Finding the Fourth Proportional to 1,425.98, 1,967.92 and 796.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,425.98 : 1,967.92 = 796.61 : x
2. Step 2: Convert to fraction form
   1,425.98/1,967.92 = 796.61/x
3. Step 3: Cross multiply
   1,425.98x = 1,967.92 × 796.61
4. Step 4: Simplify right side
   1,425.98x = 1,567,664.39
5. Step 5: Solve for x
   x = 1,567,664.39/1,425.98
6. Step 6: Final answer
   x = 1,099.36