Finding the Fourth Proportional to 2,078.59, 2,868.25 and 1,147.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,078.59 : 2,868.25 = 1,147.03 : x
2. Step 2: Convert to fraction form
   2,078.59/2,868.25 = 1,147.03/x
3. Step 3: Cross multiply
   2,078.59x = 2,868.25 × 1,147.03
4. Step 4: Simplify right side
   2,078.59x = 3,289,968.80
5. Step 5: Solve for x
   x = 3,289,968.80/2,078.59
6. Step 6: Final answer
   x = 1,582.79