Finding the Fourth Proportional to 1,514.42, 2,090.10 and 851.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,514.42 : 2,090.10 = 851.31 : x
2. Step 2: Convert to fraction form
   1,514.42/2,090.10 = 851.31/x
3. Step 3: Cross multiply
   1,514.42x = 2,090.10 × 851.31
4. Step 4: Simplify right side
   1,514.42x = 1,779,323.03
5. Step 5: Solve for x
   x = 1,779,323.03/1,514.42
6. Step 6: Final answer
   x = 1,174.92