Finding the Fourth Proportional to 738,870.79, 1,019,621.33 and 416,578.09

Step by Step Solution

1. Step 1: Write the proportion equation
   738,870.79 : 1,019,621.33 = 416,578.09 : x
2. Step 2: Convert to fraction form
   738,870.79/1,019,621.33 = 416,578.09/x
3. Step 3: Cross multiply
   738,870.79x = 1,019,621.33 × 416,578.09
4. Step 4: Simplify right side
   738,870.79x = 424,751,904,091.77
5. Step 5: Solve for x
   x = 424,751,904,091.77/738,870.79
6. Step 6: Final answer
   x = 574,866.28