Finding the Fourth Proportional to 3,974.29, 5,485.59 and 2,481.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,974.29 : 5,485.59 = 2,481.30 : x
2. Step 2: Convert to fraction form
   3,974.29/5,485.59 = 2,481.30/x
3. Step 3: Cross multiply
   3,974.29x = 5,485.59 × 2,481.30
4. Step 4: Simplify right side
   3,974.29x = 13,611,394.47
5. Step 5: Solve for x
   x = 13,611,394.47/3,974.29
6. Step 6: Final answer
   x = 3,424.86