Finding the Fourth Proportional to 1,434,141.42, 1,979,040.03 and 789,435.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,434,141.42 : 1,979,040.03 = 789,435.69 : x
2. Step 2: Convert to fraction form
   1,434,141.42/1,979,040.03 = 789,435.69/x
3. Step 3: Cross multiply
   1,434,141.42x = 1,979,040.03 × 789,435.69
4. Step 4: Simplify right side
   1,434,141.42x = 1,562,324,831,620.67
5. Step 5: Solve for x
   x = 1,562,324,831,620.67/1,434,141.42
6. Step 6: Final answer
   x = 1,089,379.90