Finding the Fourth Proportional to 3,675.39, 5,071.68 and 2,081.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,675.39 : 5,071.68 = 2,081.72 : x
2. Step 2: Convert to fraction form
   3,675.39/5,071.68 = 2,081.72/x
3. Step 3: Cross multiply
   3,675.39x = 5,071.68 × 2,081.72
4. Step 4: Simplify right side
   3,675.39x = 10,557,821.59
5. Step 5: Solve for x
   x = 10,557,821.59/3,675.39
6. Step 6: Final answer
   x = 2,872.57