Finding the Fourth Proportional to 1,514.87, 2,090.54 and 851.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,514.87 : 2,090.54 = 851.72 : x
2. Step 2: Convert to fraction form
   1,514.87/2,090.54 = 851.72/x
3. Step 3: Cross multiply
   1,514.87x = 2,090.54 × 851.72
4. Step 4: Simplify right side
   1,514.87x = 1,780,554.73
5. Step 5: Solve for x
   x = 1,780,554.73/1,514.87
6. Step 6: Final answer
   x = 1,175.38