Finding the Fourth Proportional to 2,099,889.29, 3,150,293.31 and 680,088.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099,889.29 : 3,150,293.31 = 680,088.89 : x
2. Step 2: Convert to fraction form
   2,099,889.29/3,150,293.31 = 680,088.89/x
3. Step 3: Cross multiply
   2,099,889.29x = 3,150,293.31 × 680,088.89
4. Step 4: Simplify right side
   2,099,889.29x = 2,142,479,480,372.33
5. Step 5: Solve for x
   x = 2,142,479,480,372.33/2,099,889.29
6. Step 6: Final answer
   x = 1,020,282.11