Finding the Fourth Proportional to 2,516.62, 3,473.67 and 1,678.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,516.62 : 3,473.67 = 1,678.54 : x
2. Step 2: Convert to fraction form
   2,516.62/3,473.67 = 1,678.54/x
3. Step 3: Cross multiply
   2,516.62x = 3,473.67 × 1,678.54
4. Step 4: Simplify right side
   2,516.62x = 5,830,694.04
5. Step 5: Solve for x
   x = 5,830,694.04/2,516.62
6. Step 6: Final answer
   x = 2,316.88