Finding the Fourth Proportional to 678,469.98, 1,022,581.73 and 584,830.34

Step by Step Solution

1. Step 1: Write the proportion equation
   678,469.98 : 1,022,581.73 = 584,830.34 : x
2. Step 2: Convert to fraction form
   678,469.98/1,022,581.73 = 584,830.34/x
3. Step 3: Cross multiply
   678,469.98x = 1,022,581.73 × 584,830.34
4. Step 4: Simplify right side
   678,469.98x = 598,036,820,833.69
5. Step 5: Solve for x
   x = 598,036,820,833.69/678,469.98
6. Step 6: Final answer
   x = 881,449.20