Finding the Fourth Proportional to 1,426.83, 1,968.81 and 797.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.83 : 1,968.81 = 797.31 : x
2. Step 2: Convert to fraction form
   1,426.83/1,968.81 = 797.31/x
3. Step 3: Cross multiply
   1,426.83x = 1,968.81 × 797.31
4. Step 4: Simplify right side
   1,426.83x = 1,569,751.90
5. Step 5: Solve for x
   x = 1,569,751.90/1,426.83
6. Step 6: Final answer
   x = 1,100.17