Finding the Fourth Proportional to 1,383.42, 1,908.90 and 793.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,383.42 : 1,908.90 = 793.98 : x
2. Step 2: Convert to fraction form
   1,383.42/1,908.90 = 793.98/x
3. Step 3: Cross multiply
   1,383.42x = 1,908.90 × 793.98
4. Step 4: Simplify right side
   1,383.42x = 1,515,628.42
5. Step 5: Solve for x
   x = 1,515,628.42/1,383.42
6. Step 6: Final answer
   x = 1,095.57