Finding the Fourth Proportional to 1,383.89, 1,909.77 and 794.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,383.89 : 1,909.77 = 794.42 : x
2. Step 2: Convert to fraction form
   1,383.89/1,909.77 = 794.42/x
3. Step 3: Cross multiply
   1,383.89x = 1,909.77 × 794.42
4. Step 4: Simplify right side
   1,383.89x = 1,517,159.48
5. Step 5: Solve for x
   x = 1,517,159.48/1,383.89
6. Step 6: Final answer
   x = 1,096.30