Finding the Fourth Proportional to 2,283.12, 3,150.72 and 1,339.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,283.12 : 3,150.72 = 1,339.47 : x
2. Step 2: Convert to fraction form
   2,283.12/3,150.72 = 1,339.47/x
3. Step 3: Cross multiply
   2,283.12x = 3,150.72 × 1,339.47
4. Step 4: Simplify right side
   2,283.12x = 4,220,294.92
5. Step 5: Solve for x
   x = 4,220,294.92/2,283.12
6. Step 6: Final answer
   x = 1,848.48