Finding the Fourth Proportional to 1,300,189.98, 1,949,800.06 and 447,020.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300,189.98 : 1,949,800.06 = 447,020.08 : x
2. Step 2: Convert to fraction form
   1,300,189.98/1,949,800.06 = 447,020.08/x
3. Step 3: Cross multiply
   1,300,189.98x = 1,949,800.06 × 447,020.08
4. Step 4: Simplify right side
   1,300,189.98x = 871,599,782,942.62
5. Step 5: Solve for x
   x = 871,599,782,942.62/1,300,189.98
6. Step 6: Final answer
   x = 670,363.41