Finding the Fourth Proportional to 3,974.28, 5,486.89 and 2,484.22

Step by Step Solution

1. Step 1: Write the proportion equation
   3,974.28 : 5,486.89 = 2,484.22 : x
2. Step 2: Convert to fraction form
   3,974.28/5,486.89 = 2,484.22/x
3. Step 3: Cross multiply
   3,974.28x = 5,486.89 × 2,484.22
4. Step 4: Simplify right side
   3,974.28x = 13,630,636.89
5. Step 5: Solve for x
   x = 13,630,636.89/3,974.28
6. Step 6: Final answer
   x = 3,429.71