Finding the Fourth Proportional to 3,974.83, 5,486.27 and 2,297.21

Step by Step Solution

1. Step 1: Write the proportion equation
   3,974.83 : 5,486.27 = 2,297.21 : x
2. Step 2: Convert to fraction form
   3,974.83/5,486.27 = 2,297.21/x
3. Step 3: Cross multiply
   3,974.83x = 5,486.27 × 2,297.21
4. Step 4: Simplify right side
   3,974.83x = 12,603,075.39
5. Step 5: Solve for x
   x = 12,603,075.39/3,974.83
6. Step 6: Final answer
   x = 3,170.72