Finding the Fourth Proportional to 1,514.31, 2,089.86 and 851.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,514.31 : 2,089.86 = 851.22 : x
2. Step 2: Convert to fraction form
   1,514.31/2,089.86 = 851.22/x
3. Step 3: Cross multiply
   1,514.31x = 2,089.86 × 851.22
4. Step 4: Simplify right side
   1,514.31x = 1,778,930.63
5. Step 5: Solve for x
   x = 1,778,930.63/1,514.31
6. Step 6: Final answer
   x = 1,174.75