Finding the Fourth Proportional to 3,849.18, 5,769.64 and 1,383.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,849.18 : 5,769.64 = 1,383.31 : x
2. Step 2: Convert to fraction form
   3,849.18/5,769.64 = 1,383.31/x
3. Step 3: Cross multiply
   3,849.18x = 5,769.64 × 1,383.31
4. Step 4: Simplify right side
   3,849.18x = 7,981,200.71
5. Step 5: Solve for x
   x = 7,981,200.71/3,849.18
6. Step 6: Final answer
   x = 2,073.48