Finding the Fourth Proportional to 726,955.92, 1,003,228.56 and 404,645.52

Step by Step Solution

1. Step 1: Write the proportion equation
   726,955.92 : 1,003,228.56 = 404,645.52 : x
2. Step 2: Convert to fraction form
   726,955.92/1,003,228.56 = 404,645.52/x
3. Step 3: Cross multiply
   726,955.92x = 1,003,228.56 × 404,645.52
4. Step 4: Simplify right side
   726,955.92x = 405,951,942,340.05
5. Step 5: Solve for x
   x = 405,951,942,340.05/726,955.92
6. Step 6: Final answer
   x = 558,427.18