Finding the Fourth Proportional to 2,678.52, 4,017.24 and 946.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,678.52 : 4,017.24 = 946.80 : x
2. Step 2: Convert to fraction form
   2,678.52/4,017.24 = 946.80/x
3. Step 3: Cross multiply
   2,678.52x = 4,017.24 × 946.80
4. Step 4: Simplify right side
   2,678.52x = 3,803,522.83
5. Step 5: Solve for x
   x = 3,803,522.83/2,678.52
6. Step 6: Final answer
   x = 1,420.01