Finding the Fourth Proportional to 2,105.18, 3,154.52 and 1,283.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105.18 : 3,154.52 = 1,283.24 : x
2. Step 2: Convert to fraction form
   2,105.18/3,154.52 = 1,283.24/x
3. Step 3: Cross multiply
   2,105.18x = 3,154.52 × 1,283.24
4. Step 4: Simplify right side
   2,105.18x = 4,047,984.06
5. Step 5: Solve for x
   x = 4,047,984.06/2,105.18
6. Step 6: Final answer
   x = 1,922.87