Finding the Fourth Proportional to 2,300.81, 3,452.52 and 839.97

Step by Step Solution

1. Step 1: Write the proportion equation
   2,300.81 : 3,452.52 = 839.97 : x
2. Step 2: Convert to fraction form
   2,300.81/3,452.52 = 839.97/x
3. Step 3: Cross multiply
   2,300.81x = 3,452.52 × 839.97
4. Step 4: Simplify right side
   2,300.81x = 2,900,016.37
5. Step 5: Solve for x
   x = 2,900,016.37/2,300.81
6. Step 6: Final answer
   x = 1,260.44