Finding the Fourth Proportional to 8,453.84, 12,680.72 and 2,609.04

Step by Step Solution

1. Step 1: Write the proportion equation
   8,453.84 : 12,680.72 = 2,609.04 : x
2. Step 2: Convert to fraction form
   8,453.84/12,680.72 = 2,609.04/x
3. Step 3: Cross multiply
   8,453.84x = 12,680.72 × 2,609.04
4. Step 4: Simplify right side
   8,453.84x = 33,084,505.71
5. Step 5: Solve for x
   x = 33,084,505.71/8,453.84
6. Step 6: Final answer
   x = 3,913.55