Finding the Fourth Proportional to 1,336.04, 1,843.22 and 811.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,336.04 : 1,843.22 = 811.88 : x
2. Step 2: Convert to fraction form
   1,336.04/1,843.22 = 811.88/x
3. Step 3: Cross multiply
   1,336.04x = 1,843.22 × 811.88
4. Step 4: Simplify right side
   1,336.04x = 1,496,473.45
5. Step 5: Solve for x
   x = 1,496,473.45/1,336.04
6. Step 6: Final answer
   x = 1,120.08