Finding the Fourth Proportional to 3,676.28, 5,073.99 and 2,105.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,676.28 : 5,073.99 = 2,105.42 : x
2. Step 2: Convert to fraction form
   3,676.28/5,073.99 = 2,105.42/x
3. Step 3: Cross multiply
   3,676.28x = 5,073.99 × 2,105.42
4. Step 4: Simplify right side
   3,676.28x = 10,682,880.03
5. Step 5: Solve for x
   x = 10,682,880.03/3,676.28
6. Step 6: Final answer
   x = 2,905.89