Finding the Fourth Proportional to 2,519.50, 3,473.46 and 1,680.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,519.50 : 3,473.46 = 1,680.22 : x
2. Step 2: Convert to fraction form
   2,519.50/3,473.46 = 1,680.22/x
3. Step 3: Cross multiply
   2,519.50x = 3,473.46 × 1,680.22
4. Step 4: Simplify right side
   2,519.50x = 5,836,176.96
5. Step 5: Solve for x
   x = 5,836,176.96/2,519.50
6. Step 6: Final answer
   x = 2,316.40