Finding the Fourth Proportional to 3,219,892.72, 4,829,789.88 and 823,717.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,219,892.72 : 4,829,789.88 = 823,717.12 : x
2. Step 2: Convert to fraction form
   3,219,892.72/4,829,789.88 = 823,717.12/x
3. Step 3: Cross multiply
   3,219,892.72x = 4,829,789.88 × 823,717.12
4. Step 4: Simplify right side
   3,219,892.72x = 3,978,380,610,158.75
5. Step 5: Solve for x
   x = 3,978,380,610,158.75/3,219,892.72
6. Step 6: Final answer
   x = 1,235,563.09