Finding the Fourth Proportional to 1,434,386.83, 1,979,497.37 and 789,830.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,434,386.83 : 1,979,497.37 = 789,830.09 : x
2. Step 2: Convert to fraction form
   1,434,386.83/1,979,497.37 = 789,830.09/x
3. Step 3: Cross multiply
   1,434,386.83x = 1,979,497.37 × 789,830.09
4. Step 4: Simplify right side
   1,434,386.83x = 1,563,466,585,901.86
5. Step 5: Solve for x
   x = 1,563,466,585,901.86/1,434,386.83
6. Step 6: Final answer
   x = 1,089,989.50