Finding the Fourth Proportional to 1,192,018.43, 1,644,987.33 and 648,153.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,192,018.43 : 1,644,987.33 = 648,153.78 : x
2. Step 2: Convert to fraction form
   1,192,018.43/1,644,987.33 = 648,153.78/x
3. Step 3: Cross multiply
   1,192,018.43x = 1,644,987.33 × 648,153.78
4. Step 4: Simplify right side
   1,192,018.43x = 1,066,204,755,991.61
5. Step 5: Solve for x
   x = 1,066,204,755,991.61/1,192,018.43
6. Step 6: Final answer
   x = 894,453.25