Finding the Fourth Proportional to 2,456.30, 3,434.50 and 2,456.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,456.30 : 3,434.50 = 2,456.30 : x
2. Step 2: Convert to fraction form
   2,456.30/3,434.50 = 2,456.30/x
3. Step 3: Cross multiply
   2,456.30x = 3,434.50 × 2,456.30
4. Step 4: Simplify right side
   2,456.30x = 8,436,162.35
5. Step 5: Solve for x
   x = 8,436,162.35/2,456.30
6. Step 6: Final answer
   x = 3,434.50