Finding the Fourth Proportional to 766,983.78, 1,058,389.83 and 422,801.82

Step by Step Solution

1. Step 1: Write the proportion equation
   766,983.78 : 1,058,389.83 = 422,801.82 : x
2. Step 2: Convert to fraction form
   766,983.78/1,058,389.83 = 422,801.82/x
3. Step 3: Cross multiply
   766,983.78x = 1,058,389.83 × 422,801.82
4. Step 4: Simplify right side
   766,983.78x = 447,489,146,393.49
5. Step 5: Solve for x
   x = 447,489,146,393.49/766,983.78
6. Step 6: Final answer
   x = 583,440.17