Finding the Fourth Proportional to 2,514.87, 3,470.28 and 1,438.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,514.87 : 3,470.28 = 1,438.16 : x
2. Step 2: Convert to fraction form
   2,514.87/3,470.28 = 1,438.16/x
3. Step 3: Cross multiply
   2,514.87x = 3,470.28 × 1,438.16
4. Step 4: Simplify right side
   2,514.87x = 4,990,800.53
5. Step 5: Solve for x
   x = 4,990,800.53/2,514.87
6. Step 6: Final answer
   x = 1,984.52