Finding the Fourth Proportional to 2,678.72, 3,696.68 and 1,616.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,678.72 : 3,696.68 = 1,616.54 : x
2. Step 2: Convert to fraction form
   2,678.72/3,696.68 = 1,616.54/x
3. Step 3: Cross multiply
   2,678.72x = 3,696.68 × 1,616.54
4. Step 4: Simplify right side
   2,678.72x = 5,975,823.00
5. Step 5: Solve for x
   x = 5,975,823.00/2,678.72
6. Step 6: Final answer
   x = 2,230.85