Finding the Fourth Proportional to 3,676.40, 5,073.86 and 2,105.00

Step by Step Solution

1. Step 1: Write the proportion equation
   3,676.40 : 5,073.86 = 2,105.00 : x
2. Step 2: Convert to fraction form
   3,676.40/5,073.86 = 2,105.00/x
3. Step 3: Cross multiply
   3,676.40x = 5,073.86 × 2,105.00
4. Step 4: Simplify right side
   3,676.40x = 10,680,455.19
5. Step 5: Solve for x
   x = 10,680,455.19/3,676.40
6. Step 6: Final answer
   x = 2,905.14