Finding the Fourth Proportional to 2,105.91, 2,902.85 and 1,441.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105.91 : 2,902.85 = 1,441.61 : x
2. Step 2: Convert to fraction form
   2,105.91/2,902.85 = 1,441.61/x
3. Step 3: Cross multiply
   2,105.91x = 2,902.85 × 1,441.61
4. Step 4: Simplify right side
   2,105.91x = 4,184,772.16
5. Step 5: Solve for x
   x = 4,184,772.16/2,105.91
6. Step 6: Final answer
   x = 1,987.16