Finding the Fourth Proportional to 1,514.85, 2,090.70 and 851.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,514.85 : 2,090.70 = 851.74 : x
2. Step 2: Convert to fraction form
   1,514.85/2,090.70 = 851.74/x
3. Step 3: Cross multiply
   1,514.85x = 2,090.70 × 851.74
4. Step 4: Simplify right side
   1,514.85x = 1,780,732.82
5. Step 5: Solve for x
   x = 1,780,732.82/1,514.85
6. Step 6: Final answer
   x = 1,175.52