Finding the Fourth Proportional to 2,099,401.37, 3,149,601.80 and 679,457.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099,401.37 : 3,149,601.80 = 679,457.45 : x
2. Step 2: Convert to fraction form
   2,099,401.37/3,149,601.80 = 679,457.45/x
3. Step 3: Cross multiply
   2,099,401.37x = 3,149,601.80 × 679,457.45
4. Step 4: Simplify right side
   2,099,401.37x = 2,140,020,407,543.41
5. Step 5: Solve for x
   x = 2,140,020,407,543.41/2,099,401.37
6. Step 6: Final answer
   x = 1,019,347.91