Finding the Fourth Proportional to 743,968.45, 1,026,647.89 and 404,436.70

Step by Step Solution

1. Step 1: Write the proportion equation
   743,968.45 : 1,026,647.89 = 404,436.70 : x
2. Step 2: Convert to fraction form
   743,968.45/1,026,647.89 = 404,436.70/x
3. Step 3: Cross multiply
   743,968.45x = 1,026,647.89 × 404,436.70
4. Step 4: Simplify right side
   743,968.45x = 415,214,084,693.56
5. Step 5: Solve for x
   x = 415,214,084,693.56/743,968.45
6. Step 6: Final answer
   x = 558,107.11