Finding the Fourth Proportional to 3,974.82, 5,485.91 and 2,403.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,974.82 : 5,485.91 = 2,403.15 : x
2. Step 2: Convert to fraction form
   3,974.82/5,485.91 = 2,403.15/x
3. Step 3: Cross multiply
   3,974.82x = 5,485.91 × 2,403.15
4. Step 4: Simplify right side
   3,974.82x = 13,183,464.62
5. Step 5: Solve for x
   x = 13,183,464.62/3,974.82
6. Step 6: Final answer
   x = 3,316.75