Finding the Fourth Proportional to 8,411.04, 12,618.18 and 2,864.70

Step by Step Solution

1. Step 1: Write the proportion equation
   8,411.04 : 12,618.18 = 2,864.70 : x
2. Step 2: Convert to fraction form
   8,411.04/12,618.18 = 2,864.70/x
3. Step 3: Cross multiply
   8,411.04x = 12,618.18 × 2,864.70
4. Step 4: Simplify right side
   8,411.04x = 36,147,300.25
5. Step 5: Solve for x
   x = 36,147,300.25/8,411.04
6. Step 6: Final answer
   x = 4,297.60