Finding the Fourth Proportional to 2,081.01, 3,124.26 and 1,909.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,081.01 : 3,124.26 = 1,909.09 : x
2. Step 2: Convert to fraction form
   2,081.01/3,124.26 = 1,909.09/x
3. Step 3: Cross multiply
   2,081.01x = 3,124.26 × 1,909.09
4. Step 4: Simplify right side
   2,081.01x = 5,964,485.71
5. Step 5: Solve for x
   x = 5,964,485.71/2,081.01
6. Step 6: Final answer
   x = 2,866.15