Finding the Fourth Proportional to 726,879.89, 1,003,094.28 and 404,583.05

Step by Step Solution

1. Step 1: Write the proportion equation
   726,879.89 : 1,003,094.28 = 404,583.05 : x
2. Step 2: Convert to fraction form
   726,879.89/1,003,094.28 = 404,583.05/x
3. Step 3: Cross multiply
   726,879.89x = 1,003,094.28 × 404,583.05
4. Step 4: Simplify right side
   726,879.89x = 405,834,945,747.69
5. Step 5: Solve for x
   x = 405,834,945,747.69/726,879.89
6. Step 6: Final answer
   x = 558,324.63