Finding the Fourth Proportional to 1,433,922.75, 1,978,884.42 and 789,336.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433,922.75 : 1,978,884.42 = 789,336.09 : x
2. Step 2: Convert to fraction form
   1,433,922.75/1,978,884.42 = 789,336.09/x
3. Step 3: Cross multiply
   1,433,922.75x = 1,978,884.42 × 789,336.09
4. Step 4: Simplify right side
   1,433,922.75x = 1,562,004,890,644.72
5. Step 5: Solve for x
   x = 1,562,004,890,644.72/1,433,922.75
6. Step 6: Final answer
   x = 1,089,322.90