Finding the Fourth Proportional to 1,434,286.72, 1,979,301.12 and 789,694.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,434,286.72 : 1,979,301.12 = 789,694.72 : x
2. Step 2: Convert to fraction form
   1,434,286.72/1,979,301.12 = 789,694.72/x
3. Step 3: Cross multiply
   1,434,286.72x = 1,979,301.12 × 789,694.72
4. Step 4: Simplify right side
   1,434,286.72x = 1,563,043,643,754.09
5. Step 5: Solve for x
   x = 1,563,043,643,754.09/1,434,286.72
6. Step 6: Final answer
   x = 1,089,770.70