Finding the Fourth Proportional to 3,636.39, 5,018.56 and 2,144.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,636.39 : 5,018.56 = 2,144.78 : x
2. Step 2: Convert to fraction form
   3,636.39/5,018.56 = 2,144.78/x
3. Step 3: Cross multiply
   3,636.39x = 5,018.56 × 2,144.78
4. Step 4: Simplify right side
   3,636.39x = 10,763,695.48
5. Step 5: Solve for x
   x = 10,763,695.48/3,636.39
6. Step 6: Final answer
   x = 2,959.99