Finding the Fourth Proportional to 2,112.86, 3,170.27 and 942.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,112.86 : 3,170.27 = 942.73 : x
2. Step 2: Convert to fraction form
   2,112.86/3,170.27 = 942.73/x
3. Step 3: Cross multiply
   2,112.86x = 3,170.27 × 942.73
4. Step 4: Simplify right side
   2,112.86x = 2,988,708.64
5. Step 5: Solve for x
   x = 2,988,708.64/2,112.86
6. Step 6: Final answer
   x = 1,414.53