Finding the Fourth Proportional to 2,105.88, 3,165.75 and 1,759.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105.88 : 3,165.75 = 1,759.89 : x
2. Step 2: Convert to fraction form
   2,105.88/3,165.75 = 1,759.89/x
3. Step 3: Cross multiply
   2,105.88x = 3,165.75 × 1,759.89
4. Step 4: Simplify right side
   2,105.88x = 5,571,383.64
5. Step 5: Solve for x
   x = 5,571,383.64/2,105.88
6. Step 6: Final answer
   x = 2,645.64