Finding the Fourth Proportional to 2,081.48, 3,120.68 and 984.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,081.48 : 3,120.68 = 984.56 : x
2. Step 2: Convert to fraction form
   2,081.48/3,120.68 = 984.56/x
3. Step 3: Cross multiply
   2,081.48x = 3,120.68 × 984.56
4. Step 4: Simplify right side
   2,081.48x = 3,072,506.96
5. Step 5: Solve for x
   x = 3,072,506.96/2,081.48
6. Step 6: Final answer
   x = 1,476.12