Finding the Fourth Proportional to 2,104.57, 2,904.29 and 1,147.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,104.57 : 2,904.29 = 1,147.48 : x
2. Step 2: Convert to fraction form
   2,104.57/2,904.29 = 1,147.48/x
3. Step 3: Cross multiply
   2,104.57x = 2,904.29 × 1,147.48
4. Step 4: Simplify right side
   2,104.57x = 3,332,601.69
5. Step 5: Solve for x
   x = 3,332,601.69/2,104.57
6. Step 6: Final answer
   x = 1,583.51