Finding the Fourth Proportional to 2,105.97, 2,904.57 and 1,635.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105.97 : 2,904.57 = 1,635.30 : x
2. Step 2: Convert to fraction form
   2,105.97/2,904.57 = 1,635.30/x
3. Step 3: Cross multiply
   2,105.97x = 2,904.57 × 1,635.30
4. Step 4: Simplify right side
   2,105.97x = 4,749,843.32
5. Step 5: Solve for x
   x = 4,749,843.32/2,105.97
6. Step 6: Final answer
   x = 2,255.42