Finding the Fourth Proportional to 2,664.56, 3,678.01 and 1,616.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,664.56 : 3,678.01 = 1,616.63 : x
2. Step 2: Convert to fraction form
   2,664.56/3,678.01 = 1,616.63/x
3. Step 3: Cross multiply
   2,664.56x = 3,678.01 × 1,616.63
4. Step 4: Simplify right side
   2,664.56x = 5,945,958.87
5. Step 5: Solve for x
   x = 5,945,958.87/2,664.56
6. Step 6: Final answer
   x = 2,231.50