Finding the Fourth Proportional to 2,475.50, 3,416.81 and 1,680.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,475.50 : 3,416.81 = 1,680.17 : x
2. Step 2: Convert to fraction form
   2,475.50/3,416.81 = 1,680.17/x
3. Step 3: Cross multiply
   2,475.50x = 3,416.81 × 1,680.17
4. Step 4: Simplify right side
   2,475.50x = 5,740,796.17
5. Step 5: Solve for x
   x = 5,740,796.17/2,475.50
6. Step 6: Final answer
   x = 2,319.05