Finding the Fourth Proportional to 980,667.72, 1,470,891.42 and 270,796.68

Step by Step Solution

1. Step 1: Write the proportion equation
   980,667.72 : 1,470,891.42 = 270,796.68 : x
2. Step 2: Convert to fraction form
   980,667.72/1,470,891.42 = 270,796.68/x
3. Step 3: Cross multiply
   980,667.72x = 1,470,891.42 × 270,796.68
4. Step 4: Simplify right side
   980,667.72x = 398,312,513,176.49
5. Step 5: Solve for x
   x = 398,312,513,176.49/980,667.72
6. Step 6: Final answer
   x = 406,164.60