Finding the Fourth Proportional to 2,061.96, 3,091.44 and 674.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,061.96 : 3,091.44 = 674.85 : x
2. Step 2: Convert to fraction form
   2,061.96/3,091.44 = 674.85/x
3. Step 3: Cross multiply
   2,061.96x = 3,091.44 × 674.85
4. Step 4: Simplify right side
   2,061.96x = 2,086,258.28
5. Step 5: Solve for x
   x = 2,086,258.28/2,061.96
6. Step 6: Final answer
   x = 1,011.78