Finding the Fourth Proportional to 1,433,754.91, 1,978,566.17 and 789,161.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433,754.91 : 1,978,566.17 = 789,161.23 : x
2. Step 2: Convert to fraction form
   1,433,754.91/1,978,566.17 = 789,161.23/x
3. Step 3: Cross multiply
   1,433,754.91x = 1,978,566.17 × 789,161.23
4. Step 4: Simplify right side
   1,433,754.91x = 1,561,407,712,353.59
5. Step 5: Solve for x
   x = 1,561,407,712,353.59/1,433,754.91
6. Step 6: Final answer
   x = 1,089,033.91