Finding the Fourth Proportional to 3,456.54, 5,183.73 and 1,147.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,456.54 : 5,183.73 = 1,147.50 : x
2. Step 2: Convert to fraction form
   3,456.54/5,183.73 = 1,147.50/x
3. Step 3: Cross multiply
   3,456.54x = 5,183.73 × 1,147.50
4. Step 4: Simplify right side
   3,456.54x = 5,948,330.18
5. Step 5: Solve for x
   x = 5,948,330.18/3,456.54
6. Step 6: Final answer
   x = 1,720.89