Finding the Fourth Proportional to 2,142.45, 3,213.27 and 1,046.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,142.45 : 3,213.27 = 1,046.12 : x
2. Step 2: Convert to fraction form
   2,142.45/3,213.27 = 1,046.12/x
3. Step 3: Cross multiply
   2,142.45x = 3,213.27 × 1,046.12
4. Step 4: Simplify right side
   2,142.45x = 3,361,449.95
5. Step 5: Solve for x
   x = 3,361,449.95/2,142.45
6. Step 6: Final answer
   x = 1,568.97