Finding the Fourth Proportional to 1,426.74, 1,968.73 and 797.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.74 : 1,968.73 = 797.31 : x
2. Step 2: Convert to fraction form
   1,426.74/1,968.73 = 797.31/x
3. Step 3: Cross multiply
   1,426.74x = 1,968.73 × 797.31
4. Step 4: Simplify right side
   1,426.74x = 1,569,688.12
5. Step 5: Solve for x
   x = 1,569,688.12/1,426.74
6. Step 6: Final answer
   x = 1,100.19