Finding the Fourth Proportional to 1,433,685.37, 1,978,470.56 and 789,091.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433,685.37 : 1,978,470.56 = 789,091.71 : x
2. Step 2: Convert to fraction form
   1,433,685.37/1,978,470.56 = 789,091.71/x
3. Step 3: Cross multiply
   1,433,685.37x = 1,978,470.56 × 789,091.71
4. Step 4: Simplify right side
   1,433,685.37x = 1,561,194,717,375.06
5. Step 5: Solve for x
   x = 1,561,194,717,375.06/1,433,685.37
6. Step 6: Final answer
   x = 1,088,938.17