Finding the Fourth Proportional to 6,874.56, 10,311.52 and 1,680.16

Step by Step Solution

1. Step 1: Write the proportion equation
   6,874.56 : 10,311.52 = 1,680.16 : x
2. Step 2: Convert to fraction form
   6,874.56/10,311.52 = 1,680.16/x
3. Step 3: Cross multiply
   6,874.56x = 10,311.52 × 1,680.16
4. Step 4: Simplify right side
   6,874.56x = 17,325,003.44
5. Step 5: Solve for x
   x = 17,325,003.44/6,874.56
6. Step 6: Final answer
   x = 2,520.16