Finding the Fourth Proportional to 1,426.88, 1,969.22 and 797.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.88 : 1,969.22 = 797.62 : x
2. Step 2: Convert to fraction form
   1,426.88/1,969.22 = 797.62/x
3. Step 3: Cross multiply
   1,426.88x = 1,969.22 × 797.62
4. Step 4: Simplify right side
   1,426.88x = 1,570,689.26
5. Step 5: Solve for x
   x = 1,570,689.26/1,426.88
6. Step 6: Final answer
   x = 1,100.79