Finding the Fourth Proportional to 3,760.39, 5,189.29 and 2,081.80

Step by Step Solution

1. Step 1: Write the proportion equation
   3,760.39 : 5,189.29 = 2,081.80 : x
2. Step 2: Convert to fraction form
   3,760.39/5,189.29 = 2,081.80/x
3. Step 3: Cross multiply
   3,760.39x = 5,189.29 × 2,081.80
4. Step 4: Simplify right side
   3,760.39x = 10,803,063.92
5. Step 5: Solve for x
   x = 10,803,063.92/3,760.39
6. Step 6: Final answer
   x = 2,872.86