Finding the Fourth Proportional to 2,140,067.22, 3,209,167.62 and 809,438.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,140,067.22 : 3,209,167.62 = 809,438.10 : x
2. Step 2: Convert to fraction form
   2,140,067.22/3,209,167.62 = 809,438.10/x
3. Step 3: Cross multiply
   2,140,067.22x = 3,209,167.62 × 809,438.10
4. Step 4: Simplify right side
   2,140,067.22x = 2,597,622,540,914.32
5. Step 5: Solve for x
   x = 2,597,622,540,914.32/2,140,067.22
6. Step 6: Final answer
   x = 1,213,804.18