Finding the Fourth Proportional to 2,131,664.39, 3,191,766.78 and 1,623,806

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131,664.39 : 3,191,766.78 = 1,623,806 : x
2. Step 2: Convert to fraction form
   2,131,664.39/3,191,766.78 = 1,623,806/x
3. Step 3: Cross multiply
   2,131,664.39x = 3,191,766.78 × 1,623,806
4. Step 4: Simplify right side
   2,131,664.39x = 5,182,810,047,964.68
5. Step 5: Solve for x
   x = 5,182,810,047,964.68/2,131,664.39
6. Step 6: Final answer
   x = 2,431,344.29