Finding the Fourth Proportional to 2,105.94, 3,159.53 and 1,011.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105.94 : 3,159.53 = 1,011.23 : x
2. Step 2: Convert to fraction form
   2,105.94/3,159.53 = 1,011.23/x
3. Step 3: Cross multiply
   2,105.94x = 3,159.53 × 1,011.23
4. Step 4: Simplify right side
   2,105.94x = 3,195,011.52
5. Step 5: Solve for x
   x = 3,195,011.52/2,105.94
6. Step 6: Final answer
   x = 1,517.14