Finding the Fourth Proportional to 2,099,399.74, 3,149,599.37 and 679,455.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099,399.74 : 3,149,599.37 = 679,455.83 : x
2. Step 2: Convert to fraction form
   2,099,399.74/3,149,599.37 = 679,455.83/x
3. Step 3: Cross multiply
   2,099,399.74x = 3,149,599.37 × 679,455.83
4. Step 4: Simplify right side
   2,099,399.74x = 2,140,013,658,587.55
5. Step 5: Solve for x
   x = 2,140,013,658,587.55/2,099,399.74
6. Step 6: Final answer
   x = 1,019,345.49