Finding the Fourth Proportional to 1,514.70, 2,090.37 and 851.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,514.70 : 2,090.37 = 851.61 : x
2. Step 2: Convert to fraction form
   1,514.70/2,090.37 = 851.61/x
3. Step 3: Cross multiply
   1,514.70x = 2,090.37 × 851.61
4. Step 4: Simplify right side
   1,514.70x = 1,780,191.03
5. Step 5: Solve for x
   x = 1,780,191.03/1,514.70
6. Step 6: Final answer
   x = 1,175.28