Finding the Fourth Proportional to 1,514.86, 2,090.55 and 851.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,514.86 : 2,090.55 = 851.77 : x
2. Step 2: Convert to fraction form
   1,514.86/2,090.55 = 851.77/x
3. Step 3: Cross multiply
   1,514.86x = 2,090.55 × 851.77
4. Step 4: Simplify right side
   1,514.86x = 1,780,667.77
5. Step 5: Solve for x
   x = 1,780,667.77/1,514.86
6. Step 6: Final answer
   x = 1,175.47