Finding the Fourth Proportional to 1,336.23, 1,844.17 and 838.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,336.23 : 1,844.17 = 838.89 : x
2. Step 2: Convert to fraction form
   1,336.23/1,844.17 = 838.89/x
3. Step 3: Cross multiply
   1,336.23x = 1,844.17 × 838.89
4. Step 4: Simplify right side
   1,336.23x = 1,547,053.67
5. Step 5: Solve for x
   x = 1,547,053.67/1,336.23
6. Step 6: Final answer
   x = 1,157.77