Finding the Fourth Proportional to 1,512.27, 2,086.90 and 849.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,512.27 : 2,086.90 = 849.15 : x
2. Step 2: Convert to fraction form
   1,512.27/2,086.90 = 849.15/x
3. Step 3: Cross multiply
   1,512.27x = 2,086.90 × 849.15
4. Step 4: Simplify right side
   1,512.27x = 1,772,089.01
5. Step 5: Solve for x
   x = 1,772,089.01/1,512.27
6. Step 6: Final answer
   x = 1,171.81