Finding the Fourth Proportional to 1,514.73, 2,090.43 and 851.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,514.73 : 2,090.43 = 851.55 : x
2. Step 2: Convert to fraction form
   1,514.73/2,090.43 = 851.55/x
3. Step 3: Cross multiply
   1,514.73x = 2,090.43 × 851.55
4. Step 4: Simplify right side
   1,514.73x = 1,780,105.67
5. Step 5: Solve for x
   x = 1,780,105.67/1,514.73
6. Step 6: Final answer
   x = 1,175.20