Finding the Fourth Proportional to 1,078,735.29, 1,617,681.81 and 404,448.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,078,735.29 : 1,617,681.81 = 404,448.57 : x
2. Step 2: Convert to fraction form
   1,078,735.29/1,617,681.81 = 404,448.57/x
3. Step 3: Cross multiply
   1,078,735.29x = 1,617,681.81 × 404,448.57
4. Step 4: Simplify right side
   1,078,735.29x = 654,269,094,769.51
5. Step 5: Solve for x
   x = 654,269,094,769.51/1,078,735.29
6. Step 6: Final answer
   x = 606,514.96