Finding the Fourth Proportional to 726,892.18, 1,003,111.09 and 404,595.41

Step by Step Solution

1. Step 1: Write the proportion equation
   726,892.18 : 1,003,111.09 = 404,595.41 : x
2. Step 2: Convert to fraction form
   726,892.18/1,003,111.09 = 404,595.41/x
3. Step 3: Cross multiply
   726,892.18x = 1,003,111.09 × 404,595.41
4. Step 4: Simplify right side
   726,892.18x = 405,854,136,707.05
5. Step 5: Solve for x
   x = 405,854,136,707.05/726,892.18
6. Step 6: Final answer
   x = 558,341.59