Finding the Fourth Proportional to 678,467.98, 1,022,578.72 and 584,828.34

Step by Step Solution

1. Step 1: Write the proportion equation
   678,467.98 : 1,022,578.72 = 584,828.34 : x
2. Step 2: Convert to fraction form
   678,467.98/1,022,578.72 = 584,828.34/x
3. Step 3: Cross multiply
   678,467.98x = 1,022,578.72 × 584,828.34
4. Step 4: Simplify right side
   678,467.98x = 598,033,015,336.93
5. Step 5: Solve for x
   x = 598,033,015,336.93/678,467.98
6. Step 6: Final answer
   x = 881,446.19