Finding the Fourth Proportional to 2,123.68, 3,183.86 and 1,012.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.68 : 3,183.86 = 1,012.52 : x
2. Step 2: Convert to fraction form
   2,123.68/3,183.86 = 1,012.52/x
3. Step 3: Cross multiply
   2,123.68x = 3,183.86 × 1,012.52
4. Step 4: Simplify right side
   2,123.68x = 3,223,721.93
5. Step 5: Solve for x
   x = 3,223,721.93/2,123.68
6. Step 6: Final answer
   x = 1,517.99