Finding the Fourth Proportional to 668,667.62, 922,067.56 and 572,190.73

Step by Step Solution

1. Step 1: Write the proportion equation
   668,667.62 : 922,067.56 = 572,190.73 : x
2. Step 2: Convert to fraction form
   668,667.62/922,067.56 = 572,190.73/x
3. Step 3: Cross multiply
   668,667.62x = 922,067.56 × 572,190.73
4. Step 4: Simplify right side
   668,667.62x = 527,598,514,667.06
5. Step 5: Solve for x
   x = 527,598,514,667.06/668,667.62
6. Step 6: Final answer
   x = 789,029.56