Finding the Fourth Proportional to 3,674.83, 5,071.91 and 2,081.57

Step by Step Solution

1. Step 1: Write the proportion equation
   3,674.83 : 5,071.91 = 2,081.57 : x
2. Step 2: Convert to fraction form
   3,674.83/5,071.91 = 2,081.57/x
3. Step 3: Cross multiply
   3,674.83x = 5,071.91 × 2,081.57
4. Step 4: Simplify right side
   3,674.83x = 10,557,535.70
5. Step 5: Solve for x
   x = 10,557,535.70/3,674.83
6. Step 6: Final answer
   x = 2,872.93