Finding the Fourth Proportional to 1,336.12, 1,841.96 and 838.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,336.12 : 1,841.96 = 838.42 : x
2. Step 2: Convert to fraction form
   1,336.12/1,841.96 = 838.42/x
3. Step 3: Cross multiply
   1,336.12x = 1,841.96 × 838.42
4. Step 4: Simplify right side
   1,336.12x = 1,544,333.59
5. Step 5: Solve for x
   x = 1,544,333.59/1,336.12
6. Step 6: Final answer
   x = 1,155.84