Finding the Fourth Proportional to 809,300.48, 1,116,834.72 and 446,724.44

Step by Step Solution

1. Step 1: Write the proportion equation
   809,300.48 : 1,116,834.72 = 446,724.44 : x
2. Step 2: Convert to fraction form
   809,300.48/1,116,834.72 = 446,724.44/x
3. Step 3: Cross multiply
   809,300.48x = 1,116,834.72 × 446,724.44
4. Step 4: Simplify right side
   809,300.48x = 498,917,364,864.56
5. Step 5: Solve for x
   x = 498,917,364,864.56/809,300.48
6. Step 6: Final answer
   x = 616,479.76