Finding the Fourth Proportional to 1,294.79, 1,786.86 and 797.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,294.79 : 1,786.86 = 797.04 : x
2. Step 2: Convert to fraction form
   1,294.79/1,786.86 = 797.04/x
3. Step 3: Cross multiply
   1,294.79x = 1,786.86 × 797.04
4. Step 4: Simplify right side
   1,294.79x = 1,424,198.89
5. Step 5: Solve for x
   x = 1,424,198.89/1,294.79
6. Step 6: Final answer
   x = 1,099.95