Finding the Fourth Proportional to 2,099,400.93, 3,149,601.15 and 679,457.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099,400.93 : 3,149,601.15 = 679,457.02 : x
2. Step 2: Convert to fraction form
   2,099,400.93/3,149,601.15 = 679,457.02/x
3. Step 3: Cross multiply
   2,099,400.93x = 3,149,601.15 × 679,457.02
4. Step 4: Simplify right side
   2,099,400.93x = 2,140,018,611,567.57
5. Step 5: Solve for x
   x = 2,140,018,611,567.57/2,099,400.93
6. Step 6: Final answer
   x = 1,019,347.27