Finding the Fourth Proportional to 613,722.27, 846,919.59 and 341,790.09

Step by Step Solution

1. Step 1: Write the proportion equation
   613,722.27 : 846,919.59 = 341,790.09 : x
2. Step 2: Convert to fraction form
   613,722.27/846,919.59 = 341,790.09/x
3. Step 3: Cross multiply
   613,722.27x = 846,919.59 × 341,790.09
4. Step 4: Simplify right side
   613,722.27x = 289,468,722,888.86
5. Step 5: Solve for x
   x = 289,468,722,888.86/613,722.27
6. Step 6: Final answer
   x = 471,660.78