Finding the Fourth Proportional to 3,758.91, 5,187.30 and 2,080.43

Step by Step Solution

1. Step 1: Write the proportion equation
   3,758.91 : 5,187.30 = 2,080.43 : x
2. Step 2: Convert to fraction form
   3,758.91/5,187.30 = 2,080.43/x
3. Step 3: Cross multiply
   3,758.91x = 5,187.30 × 2,080.43
4. Step 4: Simplify right side
   3,758.91x = 10,791,801.57
5. Step 5: Solve for x
   x = 10,791,801.57/3,758.91
6. Step 6: Final answer
   x = 2,871.00