Finding the Fourth Proportional to 2,616.71, 3,609.82 and 1,908.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,616.71 : 3,609.82 = 1,908.31 : x
2. Step 2: Convert to fraction form
   2,616.71/3,609.82 = 1,908.31/x
3. Step 3: Cross multiply
   2,616.71x = 3,609.82 × 1,908.31
4. Step 4: Simplify right side
   2,616.71x = 6,888,645.00
5. Step 5: Solve for x
   x = 6,888,645.00/2,616.71
6. Step 6: Final answer
   x = 2,632.56