Finding the Fourth Proportional to 1,383.34, 1,908.82 and 793.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,383.34 : 1,908.82 = 793.78 : x
2. Step 2: Convert to fraction form
   1,383.34/1,908.82 = 793.78/x
3. Step 3: Cross multiply
   1,383.34x = 1,908.82 × 793.78
4. Step 4: Simplify right side
   1,383.34x = 1,515,183.14
5. Step 5: Solve for x
   x = 1,515,183.14/1,383.34
6. Step 6: Final answer
   x = 1,095.31