Finding the Fourth Proportional to 1,280.26, 1,922.82 and 796.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,280.26 : 1,922.82 = 796.70 : x
2. Step 2: Convert to fraction form
   1,280.26/1,922.82 = 796.70/x
3. Step 3: Cross multiply
   1,280.26x = 1,922.82 × 796.70
4. Step 4: Simplify right side
   1,280.26x = 1,531,910.69
5. Step 5: Solve for x
   x = 1,531,910.69/1,280.26
6. Step 6: Final answer
   x = 1,196.56