Finding the Fourth Proportional to 3,631.72, 5,011.57 and 2,016.55

Step by Step Solution

1. Step 1: Write the proportion equation
   3,631.72 : 5,011.57 = 2,016.55 : x
2. Step 2: Convert to fraction form
   3,631.72/5,011.57 = 2,016.55/x
3. Step 3: Cross multiply
   3,631.72x = 5,011.57 × 2,016.55
4. Step 4: Simplify right side
   3,631.72x = 10,106,081.48
5. Step 5: Solve for x
   x = 10,106,081.48/3,631.72
6. Step 6: Final answer
   x = 2,782.73