Finding the Fourth Proportional to 1,426.64, 1,968.72 and 797.13

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.64 : 1,968.72 = 797.13 : x
2. Step 2: Convert to fraction form
   1,426.64/1,968.72 = 797.13/x
3. Step 3: Cross multiply
   1,426.64x = 1,968.72 × 797.13
4. Step 4: Simplify right side
   1,426.64x = 1,569,325.77
5. Step 5: Solve for x
   x = 1,569,325.77/1,426.64
6. Step 6: Final answer
   x = 1,100.02