Finding the Fourth Proportional to 1,789.27, 2,467.54 and 1,228.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,789.27 : 2,467.54 = 1,228.75 : x
2. Step 2: Convert to fraction form
   1,789.27/2,467.54 = 1,228.75/x
3. Step 3: Cross multiply
   1,789.27x = 2,467.54 × 1,228.75
4. Step 4: Simplify right side
   1,789.27x = 3,031,989.78
5. Step 5: Solve for x
   x = 3,031,989.78/1,789.27
6. Step 6: Final answer
   x = 1,694.54