Finding the Fourth Proportional to 1,426.60, 1,968.59 and 797.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.60 : 1,968.59 = 797.08 : x
2. Step 2: Convert to fraction form
   1,426.60/1,968.59 = 797.08/x
3. Step 3: Cross multiply
   1,426.60x = 1,968.59 × 797.08
4. Step 4: Simplify right side
   1,426.60x = 1,569,109.89
5. Step 5: Solve for x
   x = 1,569,109.89/1,426.60
6. Step 6: Final answer
   x = 1,099.90