Finding the Fourth Proportional to 2,078.73, 2,868.63 and 1,147.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,078.73 : 2,868.63 = 1,147.23 : x
2. Step 2: Convert to fraction form
   2,078.73/2,868.63 = 1,147.23/x
3. Step 3: Cross multiply
   2,078.73x = 2,868.63 × 1,147.23
4. Step 4: Simplify right side
   2,078.73x = 3,290,978.39
5. Step 5: Solve for x
   x = 3,290,978.39/2,078.73
6. Step 6: Final answer
   x = 1,583.17