Finding the Fourth Proportional to 2,678.27, 4,016.99 and 946.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,678.27 : 4,016.99 = 946.89 : x
2. Step 2: Convert to fraction form
   2,678.27/4,016.99 = 946.89/x
3. Step 3: Cross multiply
   2,678.27x = 4,016.99 × 946.89
4. Step 4: Simplify right side
   2,678.27x = 3,803,650.03
5. Step 5: Solve for x
   x = 3,803,650.03/2,678.27
6. Step 6: Final answer
   x = 1,420.19