Finding the Fourth Proportional to 2,647.52, 3,971.06 and 892.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,647.52 : 3,971.06 = 892.48 : x
2. Step 2: Convert to fraction form
   2,647.52/3,971.06 = 892.48/x
3. Step 3: Cross multiply
   2,647.52x = 3,971.06 × 892.48
4. Step 4: Simplify right side
   2,647.52x = 3,544,105.76
5. Step 5: Solve for x
   x = 3,544,105.76/2,647.52
6. Step 6: Final answer
   x = 1,338.65