Finding the Fourth Proportional to 726,890.36, 1,003,086.38 and 404,592.17

Step by Step Solution

1. Step 1: Write the proportion equation
   726,890.36 : 1,003,086.38 = 404,592.17 : x
2. Step 2: Convert to fraction form
   726,890.36/1,003,086.38 = 404,592.17/x
3. Step 3: Cross multiply
   726,890.36x = 1,003,086.38 × 404,592.17
4. Step 4: Simplify right side
   726,890.36x = 405,840,891,177.69
5. Step 5: Solve for x
   x = 405,840,891,177.69/726,890.36
6. Step 6: Final answer
   x = 558,324.77