Finding the Fourth Proportional to 1,180.72, 1,771.67 and 836.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,180.72 : 1,771.67 = 836.27 : x
2. Step 2: Convert to fraction form
   1,180.72/1,771.67 = 836.27/x
3. Step 3: Cross multiply
   1,180.72x = 1,771.67 × 836.27
4. Step 4: Simplify right side
   1,180.72x = 1,481,594.47
5. Step 5: Solve for x
   x = 1,481,594.47/1,180.72
6. Step 6: Final answer
   x = 1,254.82