Finding the Fourth Proportional to 2,443.72, 3,662.70 and 882.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.72 : 3,662.70 = 882.40 : x
2. Step 2: Convert to fraction form
   2,443.72/3,662.70 = 882.40/x
3. Step 3: Cross multiply
   2,443.72x = 3,662.70 × 882.40
4. Step 4: Simplify right side
   2,443.72x = 3,231,966.48
5. Step 5: Solve for x
   x = 3,231,966.48/2,443.72
6. Step 6: Final answer
   x = 1,322.56