Finding the Fourth Proportional to 693,024, 1,039,950.72 and 299,040

Step by Step Solution

1. Step 1: Write the proportion equation
   693,024 : 1,039,950.72 = 299,040 : x
2. Step 2: Convert to fraction form
   693,024/1,039,950.72 = 299,040/x
3. Step 3: Cross multiply
   693,024x = 1,039,950.72 × 299,040
4. Step 4: Simplify right side
   693,024x = 310,986,863,308.80
5. Step 5: Solve for x
   x = 310,986,863,308.80/693,024
6. Step 6: Final answer
   x = 448,738.95