Finding the Fourth Proportional to 2,647.82, 3,974.20 and 1,262.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,647.82 : 3,974.20 = 1,262.12 : x
2. Step 2: Convert to fraction form
   2,647.82/3,974.20 = 1,262.12/x
3. Step 3: Cross multiply
   2,647.82x = 3,974.20 × 1,262.12
4. Step 4: Simplify right side
   2,647.82x = 5,015,894.28
5. Step 5: Solve for x
   x = 5,015,894.28/2,647.82
6. Step 6: Final answer
   x = 1,894.35