Finding the Fourth Proportional to 743,667.16, 1,026,271.76 and 404,135.68

Step by Step Solution

1. Step 1: Write the proportion equation
   743,667.16 : 1,026,271.76 = 404,135.68 : x
2. Step 2: Convert to fraction form
   743,667.16/1,026,271.76 = 404,135.68/x
3. Step 3: Cross multiply
   743,667.16x = 1,026,271.76 × 404,135.68
4. Step 4: Simplify right side
   743,667.16x = 414,753,035,592.40
5. Step 5: Solve for x
   x = 414,753,035,592.40/743,667.16
6. Step 6: Final answer
   x = 557,713.26