Finding the Fourth Proportional to 1,514.90, 2,090.78 and 851.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,514.90 : 2,090.78 = 851.82 : x
2. Step 2: Convert to fraction form
   1,514.90/2,090.78 = 851.82/x
3. Step 3: Cross multiply
   1,514.90x = 2,090.78 × 851.82
4. Step 4: Simplify right side
   1,514.90x = 1,780,968.22
5. Step 5: Solve for x
   x = 1,780,968.22/1,514.90
6. Step 6: Final answer
   x = 1,175.63