Finding the Fourth Proportional to 2,514.18, 3,467.43 and 1,989.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,514.18 : 3,467.43 = 1,989.30 : x
2. Step 2: Convert to fraction form
   2,514.18/3,467.43 = 1,989.30/x
3. Step 3: Cross multiply
   2,514.18x = 3,467.43 × 1,989.30
4. Step 4: Simplify right side
   2,514.18x = 6,897,758.50
5. Step 5: Solve for x
   x = 6,897,758.50/2,514.18
6. Step 6: Final answer
   x = 2,743.54