Finding the Fourth Proportional to 1,356.08, 1,871.42 and 796.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,356.08 : 1,871.42 = 796.57 : x
2. Step 2: Convert to fraction form
   1,356.08/1,871.42 = 796.57/x
3. Step 3: Cross multiply
   1,356.08x = 1,871.42 × 796.57
4. Step 4: Simplify right side
   1,356.08x = 1,490,708.37
5. Step 5: Solve for x
   x = 1,490,708.37/1,356.08
6. Step 6: Final answer
   x = 1,099.28