Finding the Fourth Proportional to 808,994.18, 1,116,404.94 and 441,478.59

Step by Step Solution

1. Step 1: Write the proportion equation
   808,994.18 : 1,116,404.94 = 441,478.59 : x
2. Step 2: Convert to fraction form
   808,994.18/1,116,404.94 = 441,478.59/x
3. Step 3: Cross multiply
   808,994.18x = 1,116,404.94 × 441,478.59
4. Step 4: Simplify right side
   808,994.18x = 492,868,870,990.82
5. Step 5: Solve for x
   x = 492,868,870,990.82/808,994.18
6. Step 6: Final answer
   x = 609,236.61