Finding the Fourth Proportional to 1,434,137.10, 1,979,034.06 and 789,431.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,434,137.10 : 1,979,034.06 = 789,431.37 : x
2. Step 2: Convert to fraction form
   1,434,137.10/1,979,034.06 = 789,431.37/x
3. Step 3: Cross multiply
   1,434,137.10x = 1,979,034.06 × 789,431.37
4. Step 4: Simplify right side
   1,434,137.10x = 1,562,311,569,262.46
5. Step 5: Solve for x
   x = 1,562,311,569,262.46/1,434,137.10
6. Step 6: Final answer
   x = 1,089,373.93