Finding the Fourth Proportional to 2,514.51, 3,769.00 and 1,280.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,514.51 : 3,769.00 = 1,280.68 : x
2. Step 2: Convert to fraction form
   2,514.51/3,769.00 = 1,280.68/x
3. Step 3: Cross multiply
   2,514.51x = 3,769.00 × 1,280.68
4. Step 4: Simplify right side
   2,514.51x = 4,826,870.30
5. Step 5: Solve for x
   x = 4,826,870.30/2,514.51
6. Step 6: Final answer
   x = 1,919.61