Finding the Fourth Proportional to 3,387.98, 5,080.53 and 2,089.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,387.98 : 5,080.53 = 2,089.10 : x
2. Step 2: Convert to fraction form
   3,387.98/5,080.53 = 2,089.10/x
3. Step 3: Cross multiply
   3,387.98x = 5,080.53 × 2,089.10
4. Step 4: Simplify right side
   3,387.98x = 10,613,735.22
5. Step 5: Solve for x
   x = 10,613,735.22/3,387.98
6. Step 6: Final answer
   x = 3,132.76