Finding the Fourth Proportional to 2,105.74, 2,905.22 and 1,360.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105.74 : 2,905.22 = 1,360.20 : x
2. Step 2: Convert to fraction form
   2,105.74/2,905.22 = 1,360.20/x
3. Step 3: Cross multiply
   2,105.74x = 2,905.22 × 1,360.20
4. Step 4: Simplify right side
   2,105.74x = 3,951,680.24
5. Step 5: Solve for x
   x = 3,951,680.24/2,105.74
6. Step 6: Final answer
   x = 1,876.62