Finding the Fourth Proportional to 1,336.14, 1,843.56 and 776.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,336.14 : 1,843.56 = 776.28 : x
2. Step 2: Convert to fraction form
   1,336.14/1,843.56 = 776.28/x
3. Step 3: Cross multiply
   1,336.14x = 1,843.56 × 776.28
4. Step 4: Simplify right side
   1,336.14x = 1,431,118.76
5. Step 5: Solve for x
   x = 1,431,118.76/1,336.14
6. Step 6: Final answer
   x = 1,071.08