Finding the Fourth Proportional to 2,099,401.94, 3,149,602.60 and 679,458.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099,401.94 : 3,149,602.60 = 679,458.02 : x
2. Step 2: Convert to fraction form
   2,099,401.94/3,149,602.60 = 679,458.02/x
3. Step 3: Cross multiply
   2,099,401.94x = 3,149,602.60 × 679,458.02
4. Step 4: Simplify right side
   2,099,401.94x = 2,140,022,728,936.19
5. Step 5: Solve for x
   x = 2,140,022,728,936.19/2,099,401.94
6. Step 6: Final answer
   x = 1,019,348.75