Finding the Fourth Proportional to 2,097.09, 3,144.62 and 781.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,097.09 : 3,144.62 = 781.04 : x
2. Step 2: Convert to fraction form
   2,097.09/3,144.62 = 781.04/x
3. Step 3: Cross multiply
   2,097.09x = 3,144.62 × 781.04
4. Step 4: Simplify right side
   2,097.09x = 2,456,083.82
5. Step 5: Solve for x
   x = 2,456,083.82/2,097.09
6. Step 6: Final answer
   x = 1,171.19