Finding the Fourth Proportional to 2,105.99, 3,154.17 and 1,011.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105.99 : 3,154.17 = 1,011.13 : x
2. Step 2: Convert to fraction form
   2,105.99/3,154.17 = 1,011.13/x
3. Step 3: Cross multiply
   2,105.99x = 3,154.17 × 1,011.13
4. Step 4: Simplify right side
   2,105.99x = 3,189,275.91
5. Step 5: Solve for x
   x = 3,189,275.91/2,105.99
6. Step 6: Final answer
   x = 1,514.38