Finding the Fourth Proportional to 2,061.20, 3,091.84 and 674.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,061.20 : 3,091.84 = 674.54 : x
2. Step 2: Convert to fraction form
   2,061.20/3,091.84 = 674.54/x
3. Step 3: Cross multiply
   2,061.20x = 3,091.84 × 674.54
4. Step 4: Simplify right side
   2,061.20x = 2,085,569.75
5. Step 5: Solve for x
   x = 2,085,569.75/2,061.20
6. Step 6: Final answer
   x = 1,011.82