Finding the Fourth Proportional to 3,662.78, 5,054.30 and 2,170.44

Step by Step Solution

1. Step 1: Write the proportion equation
   3,662.78 : 5,054.30 = 2,170.44 : x
2. Step 2: Convert to fraction form
   3,662.78/5,054.30 = 2,170.44/x
3. Step 3: Cross multiply
   3,662.78x = 5,054.30 × 2,170.44
4. Step 4: Simplify right side
   3,662.78x = 10,970,054.89
5. Step 5: Solve for x
   x = 10,970,054.89/3,662.78
6. Step 6: Final answer
   x = 2,995.01