Finding the Fourth Proportional to 766,667.72, 1,057,283.81 and 605,906.81

Step by Step Solution

1. Step 1: Write the proportion equation
   766,667.72 : 1,057,283.81 = 605,906.81 : x
2. Step 2: Convert to fraction form
   766,667.72/1,057,283.81 = 605,906.81/x
3. Step 3: Cross multiply
   766,667.72x = 1,057,283.81 × 605,906.81
4. Step 4: Simplify right side
   766,667.72x = 640,615,460,581.75
5. Step 5: Solve for x
   x = 640,615,460,581.75/766,667.72
6. Step 6: Final answer
   x = 835,584.24