Finding the Fourth Proportional to 1,336.88, 1,844.84 and 812.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,336.88 : 1,844.84 = 812.82 : x
2. Step 2: Convert to fraction form
   1,336.88/1,844.84 = 812.82/x
3. Step 3: Cross multiply
   1,336.88x = 1,844.84 × 812.82
4. Step 4: Simplify right side
   1,336.88x = 1,499,522.85
5. Step 5: Solve for x
   x = 1,499,522.85/1,336.88
6. Step 6: Final answer
   x = 1,121.66