Finding the Fourth Proportional to 744,899.94, 1,028,072.59 and 438,878.50

Step by Step Solution

1. Step 1: Write the proportion equation
   744,899.94 : 1,028,072.59 = 438,878.50 : x
2. Step 2: Convert to fraction form
   744,899.94/1,028,072.59 = 438,878.50/x
3. Step 3: Cross multiply
   744,899.94x = 1,028,072.59 × 438,878.50
4. Step 4: Simplify right side
   744,899.94x = 451,198,952,522.94
5. Step 5: Solve for x
   x = 451,198,952,522.94/744,899.94
6. Step 6: Final answer
   x = 605,717.53