Finding the Fourth Proportional to 2,071.25, 3,105.97 and 1,097.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071.25 : 3,105.97 = 1,097.13 : x
2. Step 2: Convert to fraction form
   2,071.25/3,105.97 = 1,097.13/x
3. Step 3: Cross multiply
   2,071.25x = 3,105.97 × 1,097.13
4. Step 4: Simplify right side
   2,071.25x = 3,407,650.12
5. Step 5: Solve for x
   x = 3,407,650.12/2,071.25
6. Step 6: Final answer
   x = 1,645.21