Finding the Fourth Proportional to 3,662.28, 5,053.05 and 2,170.55

Step by Step Solution

1. Step 1: Write the proportion equation
   3,662.28 : 5,053.05 = 2,170.55 : x
2. Step 2: Convert to fraction form
   3,662.28/5,053.05 = 2,170.55/x
3. Step 3: Cross multiply
   3,662.28x = 5,053.05 × 2,170.55
4. Step 4: Simplify right side
   3,662.28x = 10,967,910.31
5. Step 5: Solve for x
   x = 10,967,910.31/3,662.28
6. Step 6: Final answer
   x = 2,994.83