Finding the Fourth Proportional to 1,271,002.72, 1,906,502.55 and 324,373.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,271,002.72 : 1,906,502.55 = 324,373.54 : x
2. Step 2: Convert to fraction form
   1,271,002.72/1,906,502.55 = 324,373.54/x
3. Step 3: Cross multiply
   1,271,002.72x = 1,906,502.55 × 324,373.54
4. Step 4: Simplify right side
   1,271,002.72x = 618,418,981,162.53
5. Step 5: Solve for x
   x = 618,418,981,162.53/1,271,002.72
6. Step 6: Final answer
   x = 486,559.92