Finding the Fourth Proportional to 3,848.91, 5,772.15 and 1,902.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,848.91 : 5,772.15 = 1,902.48 : x
2. Step 2: Convert to fraction form
   3,848.91/5,772.15 = 1,902.48/x
3. Step 3: Cross multiply
   3,848.91x = 5,772.15 × 1,902.48
4. Step 4: Simplify right side
   3,848.91x = 10,981,399.93
5. Step 5: Solve for x
   x = 10,981,399.93/3,848.91
6. Step 6: Final answer
   x = 2,853.12