Finding the Fourth Proportional to 1,393.70, 1,923.39 and 796.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,393.70 : 1,923.39 = 796.37 : x
2. Step 2: Convert to fraction form
   1,393.70/1,923.39 = 796.37/x
3. Step 3: Cross multiply
   1,393.70x = 1,923.39 × 796.37
4. Step 4: Simplify right side
   1,393.70x = 1,531,734.90
5. Step 5: Solve for x
   x = 1,531,734.90/1,393.70
6. Step 6: Final answer
   x = 1,099.04