Finding the Fourth Proportional to 2,142.88, 3,211.20 and 1,046.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,142.88 : 3,211.20 = 1,046.00 : x
2. Step 2: Convert to fraction form
   2,142.88/3,211.20 = 1,046.00/x
3. Step 3: Cross multiply
   2,142.88x = 3,211.20 × 1,046.00
4. Step 4: Simplify right side
   2,142.88x = 3,358,923.23
5. Step 5: Solve for x
   x = 3,358,923.23/2,142.88
6. Step 6: Final answer
   x = 1,567.48