Finding the Fourth Proportional to 885,944.42, 1,222,539.89 and 498,739.83

Step by Step Solution

1. Step 1: Write the proportion equation
   885,944.42 : 1,222,539.89 = 498,739.83 : x
2. Step 2: Convert to fraction form
   885,944.42/1,222,539.89 = 498,739.83/x
3. Step 3: Cross multiply
   885,944.42x = 1,222,539.89 × 498,739.83
4. Step 4: Simplify right side
   885,944.42x = 609,729,336,906.82
5. Step 5: Solve for x
   x = 609,729,336,906.82/885,944.42
6. Step 6: Final answer
   x = 688,225.27