Finding the Fourth Proportional to 3,025.20, 4,174.82 and 1,680.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,025.20 : 4,174.82 = 1,680.89 : x
2. Step 2: Convert to fraction form
   3,025.20/4,174.82 = 1,680.89/x
3. Step 3: Cross multiply
   3,025.20x = 4,174.82 × 1,680.89
4. Step 4: Simplify right side
   3,025.20x = 7,017,404.79
5. Step 5: Solve for x
   x = 7,017,404.79/3,025.20
6. Step 6: Final answer
   x = 2,319.65