Finding the Fourth Proportional to 1,809.59, 2,496.83 and 1,147.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,809.59 : 2,496.83 = 1,147.28 : x
2. Step 2: Convert to fraction form
   1,809.59/2,496.83 = 1,147.28/x
3. Step 3: Cross multiply
   1,809.59x = 2,496.83 × 1,147.28
4. Step 4: Simplify right side
   1,809.59x = 2,864,544.90
5. Step 5: Solve for x
   x = 2,864,544.90/1,809.59
6. Step 6: Final answer
   x = 1,582.98