Finding the Fourth Proportional to 2,123.59, 3,183.71 and 1,012.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.59 : 3,183.71 = 1,012.42 : x
2. Step 2: Convert to fraction form
   2,123.59/3,183.71 = 1,012.42/x
3. Step 3: Cross multiply
   2,123.59x = 3,183.71 × 1,012.42
4. Step 4: Simplify right side
   2,123.59x = 3,223,259.55
5. Step 5: Solve for x
   x = 3,223,259.55/2,123.59
6. Step 6: Final answer
   x = 1,517.83