Finding the Fourth Proportional to 3,758.57, 5,186.83 and 2,080.05

Step by Step Solution

1. Step 1: Write the proportion equation
   3,758.57 : 5,186.83 = 2,080.05 : x
2. Step 2: Convert to fraction form
   3,758.57/5,186.83 = 2,080.05/x
3. Step 3: Cross multiply
   3,758.57x = 5,186.83 × 2,080.05
4. Step 4: Simplify right side
   3,758.57x = 10,788,839.81
5. Step 5: Solve for x
   x = 10,788,839.81/3,758.57
6. Step 6: Final answer
   x = 2,870.47