Finding the Fourth Proportional to 2,105.41, 2,905.98 and 1,434.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105.41 : 2,905.98 = 1,434.32 : x
2. Step 2: Convert to fraction form
   2,105.41/2,905.98 = 1,434.32/x
3. Step 3: Cross multiply
   2,105.41x = 2,905.98 × 1,434.32
4. Step 4: Simplify right side
   2,105.41x = 4,168,105.23
5. Step 5: Solve for x
   x = 4,168,105.23/2,105.41
6. Step 6: Final answer
   x = 1,979.72