Finding the Fourth Proportional to 801,076.50, 1,105,485.57 and 443,380.50

Step by Step Solution

1. Step 1: Write the proportion equation
   801,076.50 : 1,105,485.57 = 443,380.50 : x
2. Step 2: Convert to fraction form
   801,076.50/1,105,485.57 = 443,380.50/x
3. Step 3: Cross multiply
   801,076.50x = 1,105,485.57 × 443,380.50
4. Step 4: Simplify right side
   801,076.50x = 490,150,744,769.39
5. Step 5: Solve for x
   x = 490,150,744,769.39/801,076.50
6. Step 6: Final answer
   x = 611,865.09