Finding the Fourth Proportional to 2,142.54, 3,212.55 and 1,031.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,142.54 : 3,212.55 = 1,031.46 : x
2. Step 2: Convert to fraction form
   2,142.54/3,212.55 = 1,031.46/x
3. Step 3: Cross multiply
   2,142.54x = 3,212.55 × 1,031.46
4. Step 4: Simplify right side
   2,142.54x = 3,313,616.82
5. Step 5: Solve for x
   x = 3,313,616.82/2,142.54
6. Step 6: Final answer
   x = 1,546.58