Finding the Fourth Proportional to 3,662.74, 5,053.79 and 2,171.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,662.74 : 5,053.79 = 2,171.12 : x
2. Step 2: Convert to fraction form
   3,662.74/5,053.79 = 2,171.12/x
3. Step 3: Cross multiply
   3,662.74x = 5,053.79 × 2,171.12
4. Step 4: Simplify right side
   3,662.74x = 10,972,384.54
5. Step 5: Solve for x
   x = 10,972,384.54/3,662.74
6. Step 6: Final answer
   x = 2,995.68