Finding the Fourth Proportional to 3,699.72, 5,105.39 and 2,127.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,699.72 : 5,105.39 = 2,127.83 : x
2. Step 2: Convert to fraction form
   3,699.72/5,105.39 = 2,127.83/x
3. Step 3: Cross multiply
   3,699.72x = 5,105.39 × 2,127.83
4. Step 4: Simplify right side
   3,699.72x = 10,863,365.84
5. Step 5: Solve for x
   x = 10,863,365.84/3,699.72
6. Step 6: Final answer
   x = 2,936.27