Finding the Fourth Proportional to 3,339.81, 5,009.37 and 1,148.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,339.81 : 5,009.37 = 1,148.69 : x
2. Step 2: Convert to fraction form
   3,339.81/5,009.37 = 1,148.69/x
3. Step 3: Cross multiply
   3,339.81x = 5,009.37 × 1,148.69
4. Step 4: Simplify right side
   3,339.81x = 5,754,200.70
5. Step 5: Solve for x
   x = 5,754,200.70/3,339.81
6. Step 6: Final answer
   x = 1,722.92