Finding the Fourth Proportional to 3,663.05, 5,054.69 and 2,170.71

Step by Step Solution

1. Step 1: Write the proportion equation
   3,663.05 : 5,054.69 = 2,170.71 : x
2. Step 2: Convert to fraction form
   3,663.05/5,054.69 = 2,170.71/x
3. Step 3: Cross multiply
   3,663.05x = 5,054.69 × 2,170.71
4. Step 4: Simplify right side
   3,663.05x = 10,972,255.28
5. Step 5: Solve for x
   x = 10,972,255.28/3,663.05
6. Step 6: Final answer
   x = 2,995.39