Finding the Fourth Proportional to 2,104.89, 2,905.38 and 2,000.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,104.89 : 2,905.38 = 2,000.40 : x
2. Step 2: Convert to fraction form
   2,104.89/2,905.38 = 2,000.40/x
3. Step 3: Cross multiply
   2,104.89x = 2,905.38 × 2,000.40
4. Step 4: Simplify right side
   2,104.89x = 5,811,922.15
5. Step 5: Solve for x
   x = 5,811,922.15/2,104.89
6. Step 6: Final answer
   x = 2,761.15