Finding the Fourth Proportional to 1,426.98, 1,968.79 and 797.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.98 : 1,968.79 = 797.42 : x
2. Step 2: Convert to fraction form
   1,426.98/1,968.79 = 797.42/x
3. Step 3: Cross multiply
   1,426.98x = 1,968.79 × 797.42
4. Step 4: Simplify right side
   1,426.98x = 1,569,952.52
5. Step 5: Solve for x
   x = 1,569,952.52/1,426.98
6. Step 6: Final answer
   x = 1,100.19