Finding the Fourth Proportional to 2,105.91, 2,906.24 and 1,174.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105.91 : 2,906.24 = 1,174.59 : x
2. Step 2: Convert to fraction form
   2,105.91/2,906.24 = 1,174.59/x
3. Step 3: Cross multiply
   2,105.91x = 2,906.24 × 1,174.59
4. Step 4: Simplify right side
   2,105.91x = 3,413,634.57
5. Step 5: Solve for x
   x = 3,413,634.57/2,105.91
6. Step 6: Final answer
   x = 1,620.98