Finding the Fourth Proportional to 3,974.18, 5,483.10 and 2,648.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,974.18 : 5,483.10 = 2,648.12 : x
2. Step 2: Convert to fraction form
   3,974.18/5,483.10 = 2,648.12/x
3. Step 3: Cross multiply
   3,974.18x = 5,483.10 × 2,648.12
4. Step 4: Simplify right side
   3,974.18x = 14,519,906.77
5. Step 5: Solve for x
   x = 14,519,906.77/3,974.18
6. Step 6: Final answer
   x = 3,653.56