Finding the Fourth Proportional to 808,995.18, 1,116,406.31 and 441,479.59

Step by Step Solution

1. Step 1: Write the proportion equation
   808,995.18 : 1,116,406.31 = 441,479.59 : x
2. Step 2: Convert to fraction form
   808,995.18/1,116,406.31 = 441,479.59/x
3. Step 3: Cross multiply
   808,995.18x = 1,116,406.31 × 441,479.59
4. Step 4: Simplify right side
   808,995.18x = 492,870,600,012.21
5. Step 5: Solve for x
   x = 492,870,600,012.21/808,995.18
6. Step 6: Final answer
   x = 609,237.99