Finding the Fourth Proportional to 708,498.72, 1,058,051.91 and 622,651.68

Step by Step Solution

1. Step 1: Write the proportion equation
   708,498.72 : 1,058,051.91 = 622,651.68 : x
2. Step 2: Convert to fraction form
   708,498.72/1,058,051.91 = 622,651.68/x
3. Step 3: Cross multiply
   708,498.72x = 1,058,051.91 × 622,651.68
4. Step 4: Simplify right side
   708,498.72x = 658,797,799,288.71
5. Step 5: Solve for x
   x = 658,797,799,288.71/708,498.72
6. Step 6: Final answer
   x = 929,850.37