Finding the Fourth Proportional to 2,189,776.92, 3,021,453.78 and 1,222,758.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,189,776.92 : 3,021,453.78 = 1,222,758.42 : x
2. Step 2: Convert to fraction form
   2,189,776.92/3,021,453.78 = 1,222,758.42/x
3. Step 3: Cross multiply
   2,189,776.92x = 3,021,453.78 × 1,222,758.42
4. Step 4: Simplify right side
   2,189,776.92x = 3,694,508,050,135.83
5. Step 5: Solve for x
   x = 3,694,508,050,135.83/2,189,776.92
6. Step 6: Final answer
   x = 1,687,161.84