Finding the Fourth Proportional to 1,433,770.17, 1,978,603.37 and 789,185.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433,770.17 : 1,978,603.37 = 789,185.73 : x
2. Step 2: Convert to fraction form
   1,433,770.17/1,978,603.37 = 789,185.73/x
3. Step 3: Cross multiply
   1,433,770.17x = 1,978,603.37 × 789,185.73
4. Step 4: Simplify right side
   1,433,770.17x = 1,561,485,551,367.19
5. Step 5: Solve for x
   x = 1,561,485,551,367.19/1,433,770.17
6. Step 6: Final answer
   x = 1,089,076.61