Finding the Fourth Proportional to 1,383.59, 1,910.85 and 942.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,383.59 : 1,910.85 = 942.68 : x
2. Step 2: Convert to fraction form
   1,383.59/1,910.85 = 942.68/x
3. Step 3: Cross multiply
   1,383.59x = 1,910.85 × 942.68
4. Step 4: Simplify right side
   1,383.59x = 1,801,320.08
5. Step 5: Solve for x
   x = 1,801,320.08/1,383.59
6. Step 6: Final answer
   x = 1,301.92