Finding the Fourth Proportional to 8,404.46, 12,603.04 and 2,856.31

Step by Step Solution

1. Step 1: Write the proportion equation
   8,404.46 : 12,603.04 = 2,856.31 : x
2. Step 2: Convert to fraction form
   8,404.46/12,603.04 = 2,856.31/x
3. Step 3: Cross multiply
   8,404.46x = 12,603.04 × 2,856.31
4. Step 4: Simplify right side
   8,404.46x = 35,998,237.49
5. Step 5: Solve for x
   x = 35,998,237.49/8,404.46
6. Step 6: Final answer
   x = 4,283.23