Finding the Fourth Proportional to 2,099,401.18, 3,149,601.47 and 679,457.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099,401.18 : 3,149,601.47 = 679,457.26 : x
2. Step 2: Convert to fraction form
   2,099,401.18/3,149,601.47 = 679,457.26/x
3. Step 3: Cross multiply
   2,099,401.18x = 3,149,601.47 × 679,457.26
4. Step 4: Simplify right side
   2,099,401.18x = 2,140,019,587,985.85
5. Step 5: Solve for x
   x = 2,140,019,587,985.85/2,099,401.18
6. Step 6: Final answer
   x = 1,019,347.61