Finding the Fourth Proportional to 1,078,464.44, 1,488,412.73 and 619,578.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,078,464.44 : 1,488,412.73 = 619,578.16 : x
2. Step 2: Convert to fraction form
   1,078,464.44/1,488,412.73 = 619,578.16/x
3. Step 3: Cross multiply
   1,078,464.44x = 1,488,412.73 × 619,578.16
4. Step 4: Simplify right side
   1,078,464.44x = 922,188,018,401.89
5. Step 5: Solve for x
   x = 922,188,018,401.89/1,078,464.44
6. Step 6: Final answer
   x = 855,093.58