Finding the Fourth Proportional to 1,433,698.79, 1,978,488.69 and 789,105.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433,698.79 : 1,978,488.69 = 789,105.14 : x
2. Step 2: Convert to fraction form
   1,433,698.79/1,978,488.69 = 789,105.14/x
3. Step 3: Cross multiply
   1,433,698.79x = 1,978,488.69 × 789,105.14
4. Step 4: Simplify right side
   1,433,698.79x = 1,561,235,589,278.61
5. Step 5: Solve for x
   x = 1,561,235,589,278.61/1,433,698.79
6. Step 6: Final answer
   x = 1,088,956.48