Finding the Fourth Proportional to 1,356.26, 1,871.22 and 796.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,356.26 : 1,871.22 = 796.72 : x
2. Step 2: Convert to fraction form
   1,356.26/1,871.22 = 796.72/x
3. Step 3: Cross multiply
   1,356.26x = 1,871.22 × 796.72
4. Step 4: Simplify right side
   1,356.26x = 1,490,838.40
5. Step 5: Solve for x
   x = 1,490,838.40/1,356.26
6. Step 6: Final answer
   x = 1,099.23