Finding the Fourth Proportional to 1,300,120.73, 1,950,447.06 and 447,081.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300,120.73 : 1,950,447.06 = 447,081.60 : x
2. Step 2: Convert to fraction form
   1,300,120.73/1,950,447.06 = 447,081.60/x
3. Step 3: Cross multiply
   1,300,120.73x = 1,950,447.06 × 447,081.60
4. Step 4: Simplify right side
   1,300,120.73x = 872,008,992,300.10
5. Step 5: Solve for x
   x = 872,008,992,300.10/1,300,120.73
6. Step 6: Final answer
   x = 670,713.86