Finding the Fourth Proportional to 2,684.72, 4,020.60 and 1,382.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,684.72 : 4,020.60 = 1,382.24 : x
2. Step 2: Convert to fraction form
   2,684.72/4,020.60 = 1,382.24/x
3. Step 3: Cross multiply
   2,684.72x = 4,020.60 × 1,382.24
4. Step 4: Simplify right side
   2,684.72x = 5,557,434.14
5. Step 5: Solve for x
   x = 5,557,434.14/2,684.72
6. Step 6: Final answer
   x = 2,070.02