Finding the Fourth Proportional to 726,945.51, 1,003,171.10 and 404,653.35

Step by Step Solution

1. Step 1: Write the proportion equation
   726,945.51 : 1,003,171.10 = 404,653.35 : x
2. Step 2: Convert to fraction form
   726,945.51/1,003,171.10 = 404,653.35/x
3. Step 3: Cross multiply
   726,945.51x = 1,003,171.10 × 404,653.35
4. Step 4: Simplify right side
   726,945.51x = 405,936,544,214.92
5. Step 5: Solve for x
   x = 405,936,544,214.92/726,945.51
6. Step 6: Final answer
   x = 558,413.99