Finding the Fourth Proportional to 1,383.27, 1,906.76 and 940.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,383.27 : 1,906.76 = 940.41 : x
2. Step 2: Convert to fraction form
   1,383.27/1,906.76 = 940.41/x
3. Step 3: Cross multiply
   1,383.27x = 1,906.76 × 940.41
4. Step 4: Simplify right side
   1,383.27x = 1,793,131.47
5. Step 5: Solve for x
   x = 1,793,131.47/1,383.27
6. Step 6: Final answer
   x = 1,296.30