Finding the Fourth Proportional to 980,055.94, 1,470,185.61 and 270,084.10

Step by Step Solution

1. Step 1: Write the proportion equation
   980,055.94 : 1,470,185.61 = 270,084.10 : x
2. Step 2: Convert to fraction form
   980,055.94/1,470,185.61 = 270,084.10/x
3. Step 3: Cross multiply
   980,055.94x = 1,470,185.61 × 270,084.10
4. Step 4: Simplify right side
   980,055.94x = 397,073,757,309.80
5. Step 5: Solve for x
   x = 397,073,757,309.80/980,055.94
6. Step 6: Final answer
   x = 405,154.18