Finding the Fourth Proportional to 2,790.27, 4,183.92 and 1,384.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,790.27 : 4,183.92 = 1,384.47 : x
2. Step 2: Convert to fraction form
   2,790.27/4,183.92 = 1,384.47/x
3. Step 3: Cross multiply
   2,790.27x = 4,183.92 × 1,384.47
4. Step 4: Simplify right side
   2,790.27x = 5,792,511.72
5. Step 5: Solve for x
   x = 5,792,511.72/2,790.27
6. Step 6: Final answer
   x = 2,075.97