Finding the Fourth Proportional to 638,404.05, 954,782.72 and 567,822.27

Step by Step Solution

1. Step 1: Write the proportion equation
   638,404.05 : 954,782.72 = 567,822.27 : x
2. Step 2: Convert to fraction form
   638,404.05/954,782.72 = 567,822.27/x
3. Step 3: Cross multiply
   638,404.05x = 954,782.72 × 567,822.27
4. Step 4: Simplify right side
   638,404.05x = 542,146,891,427.17
5. Step 5: Solve for x
   x = 542,146,891,427.17/638,404.05
6. Step 6: Final answer
   x = 849,222.20