Finding the Fourth Proportional to 3,663.86, 5,054.04 and 2,171.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,663.86 : 5,054.04 = 2,171.52 : x
2. Step 2: Convert to fraction form
   3,663.86/5,054.04 = 2,171.52/x
3. Step 3: Cross multiply
   3,663.86x = 5,054.04 × 2,171.52
4. Step 4: Simplify right side
   3,663.86x = 10,974,948.94
5. Step 5: Solve for x
   x = 10,974,948.94/3,663.86
6. Step 6: Final answer
   x = 2,995.46