Finding the Fourth Proportional to 3,758.89, 5,187.23 and 2,080.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,758.89 : 5,187.23 = 2,080.30 : x
2. Step 2: Convert to fraction form
   3,758.89/5,187.23 = 2,080.30/x
3. Step 3: Cross multiply
   3,758.89x = 5,187.23 × 2,080.30
4. Step 4: Simplify right side
   3,758.89x = 10,790,994.57
5. Step 5: Solve for x
   x = 10,790,994.57/3,758.89
6. Step 6: Final answer
   x = 2,870.79