Finding the Fourth Proportional to 2,099,399.49, 3,149,598.98 and 679,455.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099,399.49 : 3,149,598.98 = 679,455.57 : x
2. Step 2: Convert to fraction form
   2,099,399.49/3,149,598.98 = 679,455.57/x
3. Step 3: Cross multiply
   2,099,399.49x = 3,149,598.98 × 679,455.57
4. Step 4: Simplify right side
   2,099,399.49x = 2,140,012,570,227.32
5. Step 5: Solve for x
   x = 2,140,012,570,227.32/2,099,399.49
6. Step 6: Final answer
   x = 1,019,345.09