Finding the Fourth Proportional to 2,104.75, 3,155.49 and 1,372.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,104.75 : 3,155.49 = 1,372.09 : x
2. Step 2: Convert to fraction form
   2,104.75/3,155.49 = 1,372.09/x
3. Step 3: Cross multiply
   2,104.75x = 3,155.49 × 1,372.09
4. Step 4: Simplify right side
   2,104.75x = 4,329,616.27
5. Step 5: Solve for x
   x = 4,329,616.27/2,104.75
6. Step 6: Final answer
   x = 2,057.07