Finding the Fourth Proportional to 1,198,020.56, 1,797,025.72 and 311,554

Step by Step Solution

1. Step 1: Write the proportion equation
   1,198,020.56 : 1,797,025.72 = 311,554 : x
2. Step 2: Convert to fraction form
   1,198,020.56/1,797,025.72 = 311,554/x
3. Step 3: Cross multiply
   1,198,020.56x = 1,797,025.72 × 311,554
4. Step 4: Simplify right side
   1,198,020.56x = 559,870,551,168.88
5. Step 5: Solve for x
   x = 559,870,551,168.88/1,198,020.56
6. Step 6: Final answer
   x = 467,329.67