Finding the Fourth Proportional to 2,081.23, 3,119.49 and 847.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,081.23 : 3,119.49 = 847.09 : x
2. Step 2: Convert to fraction form
   2,081.23/3,119.49 = 847.09/x
3. Step 3: Cross multiply
   2,081.23x = 3,119.49 × 847.09
4. Step 4: Simplify right side
   2,081.23x = 2,642,488.78
5. Step 5: Solve for x
   x = 2,642,488.78/2,081.23
6. Step 6: Final answer
   x = 1,269.68