Finding the Fourth Proportional to 2,099,398.49, 3,149,597.48 and 679,454.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099,398.49 : 3,149,597.48 = 679,454.57 : x
2. Step 2: Convert to fraction form
   2,099,398.49/3,149,597.48 = 679,454.57/x
3. Step 3: Cross multiply
   2,099,398.49x = 3,149,597.48 × 679,454.57
4. Step 4: Simplify right side
   2,099,398.49x = 2,140,008,401,446.48
5. Step 5: Solve for x
   x = 2,140,008,401,446.48/2,099,398.49
6. Step 6: Final answer
   x = 1,019,343.59