Finding the Fourth Proportional to 3,877.33, 5,350.83 and 2,109.05

Step by Step Solution

1. Step 1: Write the proportion equation
   3,877.33 : 5,350.83 = 2,109.05 : x
2. Step 2: Convert to fraction form
   3,877.33/5,350.83 = 2,109.05/x
3. Step 3: Cross multiply
   3,877.33x = 5,350.83 × 2,109.05
4. Step 4: Simplify right side
   3,877.33x = 11,285,157.47
5. Step 5: Solve for x
   x = 11,285,157.47/3,877.33
6. Step 6: Final answer
   x = 2,910.55