Finding the Fourth Proportional to 2,514.76, 3,768.94 and 1,128.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,514.76 : 3,768.94 = 1,128.04 : x
2. Step 2: Convert to fraction form
   2,514.76/3,768.94 = 1,128.04/x
3. Step 3: Cross multiply
   2,514.76x = 3,768.94 × 1,128.04
4. Step 4: Simplify right side
   2,514.76x = 4,251,496.23
5. Step 5: Solve for x
   x = 4,251,496.23/2,514.76
6. Step 6: Final answer
   x = 1,690.62