Finding the Fourth Proportional to 1,426.48, 1,968.40 and 796.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.48 : 1,968.40 = 796.96 : x
2. Step 2: Convert to fraction form
   1,426.48/1,968.40 = 796.96/x
3. Step 3: Cross multiply
   1,426.48x = 1,968.40 × 796.96
4. Step 4: Simplify right side
   1,426.48x = 1,568,729.15
5. Step 5: Solve for x
   x = 1,568,729.15/1,426.48
6. Step 6: Final answer
   x = 1,099.72