Finding the Fourth Proportional to 743,676.24, 1,026,279.72 and 404,144.56

Step by Step Solution

1. Step 1: Write the proportion equation
   743,676.24 : 1,026,279.72 = 404,144.56 : x
2. Step 2: Convert to fraction form
   743,676.24/1,026,279.72 = 404,144.56/x
3. Step 3: Cross multiply
   743,676.24x = 1,026,279.72 × 404,144.56
4. Step 4: Simplify right side
   743,676.24x = 414,765,365,876.32
5. Step 5: Solve for x
   x = 414,765,365,876.32/743,676.24
6. Step 6: Final answer
   x = 557,723.03