Finding the Fourth Proportional to 1,014,078.88, 1,399,506.59 and 578,505.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,014,078.88 : 1,399,506.59 = 578,505.82 : x
2. Step 2: Convert to fraction form
   1,014,078.88/1,399,506.59 = 578,505.82/x
3. Step 3: Cross multiply
   1,014,078.88x = 1,399,506.59 × 578,505.82
4. Step 4: Simplify right side
   1,014,078.88x = 809,622,707,443.35
5. Step 5: Solve for x
   x = 809,622,707,443.35/1,014,078.88
6. Step 6: Final answer
   x = 798,382.38