Finding the Fourth Proportional to 2,283.48, 3,150.72 and 1,339.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,283.48 : 3,150.72 = 1,339.20 : x
2. Step 2: Convert to fraction form
   2,283.48/3,150.72 = 1,339.20/x
3. Step 3: Cross multiply
   2,283.48x = 3,150.72 × 1,339.20
4. Step 4: Simplify right side
   2,283.48x = 4,219,444.22
5. Step 5: Solve for x
   x = 4,219,444.22/2,283.48
6. Step 6: Final answer
   x = 1,847.81