Finding the Fourth Proportional to 2,619,064.16, 3,928,578.96 and 673,789.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,619,064.16 : 3,928,578.96 = 673,789.76 : x
2. Step 2: Convert to fraction form
   2,619,064.16/3,928,578.96 = 673,789.76/x
3. Step 3: Cross multiply
   2,619,064.16x = 3,928,578.96 × 673,789.76
4. Step 4: Simplify right side
   2,619,064.16x = 2,647,036,274,599.45
5. Step 5: Solve for x
   x = 2,647,036,274,599.45/2,619,064.16
6. Step 6: Final answer
   x = 1,010,680.19