Finding the Fourth Proportional to 2,396.64, 3,573.82 and 2,105.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,396.64 : 3,573.82 = 2,105.35 : x
2. Step 2: Convert to fraction form
   2,396.64/3,573.82 = 2,105.35/x
3. Step 3: Cross multiply
   2,396.64x = 3,573.82 × 2,105.35
4. Step 4: Simplify right side
   2,396.64x = 7,524,141.94
5. Step 5: Solve for x
   x = 7,524,141.94/2,396.64
6. Step 6: Final answer
   x = 3,139.45