Finding the Fourth Proportional to 1,383.86, 1,909.78 and 794.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,383.86 : 1,909.78 = 794.46 : x
2. Step 2: Convert to fraction form
   1,383.86/1,909.78 = 794.46/x
3. Step 3: Cross multiply
   1,383.86x = 1,909.78 × 794.46
4. Step 4: Simplify right side
   1,383.86x = 1,517,243.82
5. Step 5: Solve for x
   x = 1,517,243.82/1,383.86
6. Step 6: Final answer
   x = 1,096.39