Finding the Fourth Proportional to 2,099,397.49, 3,149,595.98 and 679,453.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099,397.49 : 3,149,595.98 = 679,453.57 : x
2. Step 2: Convert to fraction form
   2,099,397.49/3,149,595.98 = 679,453.57/x
3. Step 3: Cross multiply
   2,099,397.49x = 3,149,595.98 × 679,453.57
4. Step 4: Simplify right side
   2,099,397.49x = 2,140,004,239,578.25
5. Step 5: Solve for x
   x = 2,140,004,239,578.25/2,099,397.49
6. Step 6: Final answer
   x = 1,019,342.10