Finding the Fourth Proportional to 1,336.84, 1,844.81 and 813.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,336.84 : 1,844.81 = 813.04 : x
2. Step 2: Convert to fraction form
   1,336.84/1,844.81 = 813.04/x
3. Step 3: Cross multiply
   1,336.84x = 1,844.81 × 813.04
4. Step 4: Simplify right side
   1,336.84x = 1,499,898.69
5. Step 5: Solve for x
   x = 1,499,898.69/1,336.84
6. Step 6: Final answer
   x = 1,121.98