Finding the Fourth Proportional to 8,404.56, 12,607.56 and 2,859.48

Step by Step Solution

1. Step 1: Write the proportion equation
   8,404.56 : 12,607.56 = 2,859.48 : x
2. Step 2: Convert to fraction form
   8,404.56/12,607.56 = 2,859.48/x
3. Step 3: Cross multiply
   8,404.56x = 12,607.56 × 2,859.48
4. Step 4: Simplify right side
   8,404.56x = 36,051,065.67
5. Step 5: Solve for x
   x = 36,051,065.67/8,404.56
6. Step 6: Final answer
   x = 4,289.46