Finding the Fourth Proportional to 1,520.01, 2,098.01 and 857.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,520.01 : 2,098.01 = 857.25 : x
2. Step 2: Convert to fraction form
   1,520.01/2,098.01 = 857.25/x
3. Step 3: Cross multiply
   1,520.01x = 2,098.01 × 857.25
4. Step 4: Simplify right side
   1,520.01x = 1,798,514.79
5. Step 5: Solve for x
   x = 1,798,514.79/1,520.01
6. Step 6: Final answer
   x = 1,183.23