Finding the Fourth Proportional to 2,340.72, 3,228.84 and 1,512.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,340.72 : 3,228.84 = 1,512.72 : x
2. Step 2: Convert to fraction form
   2,340.72/3,228.84 = 1,512.72/x
3. Step 3: Cross multiply
   2,340.72x = 3,228.84 × 1,512.72
4. Step 4: Simplify right side
   2,340.72x = 4,884,330.84
5. Step 5: Solve for x
   x = 4,884,330.84/2,340.72
6. Step 6: Final answer
   x = 2,086.68