Finding the Fourth Proportional to 726,554.56, 1,002,650.24 and 404,278.24

Step by Step Solution

1. Step 1: Write the proportion equation
   726,554.56 : 1,002,650.24 = 404,278.24 : x
2. Step 2: Convert to fraction form
   726,554.56/1,002,650.24 = 404,278.24/x
3. Step 3: Cross multiply
   726,554.56x = 1,002,650.24 × 404,278.24
4. Step 4: Simplify right side
   726,554.56x = 405,349,674,362.78
5. Step 5: Solve for x
   x = 405,349,674,362.78/726,554.56
6. Step 6: Final answer
   x = 557,906.72