Finding the Fourth Proportional to 2,719,728.72, 4,079,738.75 and 697,990.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,719,728.72 : 4,079,738.75 = 697,990.05 : x
2. Step 2: Convert to fraction form
   2,719,728.72/4,079,738.75 = 697,990.05/x
3. Step 3: Cross multiply
   2,719,728.72x = 4,079,738.75 × 697,990.05
4. Step 4: Simplify right side
   2,719,728.72x = 2,847,617,050,609.49
5. Step 5: Solve for x
   x = 2,847,617,050,609.49/2,719,728.72
6. Step 6: Final answer
   x = 1,047,022.46