Finding the Fourth Proportional to 2,106.72, 3,159.52 and 1,282.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,106.72 : 3,159.52 = 1,282.14 : x
2. Step 2: Convert to fraction form
   2,106.72/3,159.52 = 1,282.14/x
3. Step 3: Cross multiply
   2,106.72x = 3,159.52 × 1,282.14
4. Step 4: Simplify right side
   2,106.72x = 4,050,946.97
5. Step 5: Solve for x
   x = 4,050,946.97/2,106.72
6. Step 6: Final answer
   x = 1,922.87