Finding the Fourth Proportional to 2,081.46, 3,123.73 and 985.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,081.46 : 3,123.73 = 985.83 : x
2. Step 2: Convert to fraction form
   2,081.46/3,123.73 = 985.83/x
3. Step 3: Cross multiply
   2,081.46x = 3,123.73 × 985.83
4. Step 4: Simplify right side
   2,081.46x = 3,079,466.75
5. Step 5: Solve for x
   x = 3,079,466.75/2,081.46
6. Step 6: Final answer
   x = 1,479.47