Finding the Fourth Proportional to 1,336.03, 1,843.46 and 805.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,336.03 : 1,843.46 = 805.21 : x
2. Step 2: Convert to fraction form
   1,336.03/1,843.46 = 805.21/x
3. Step 3: Cross multiply
   1,336.03x = 1,843.46 × 805.21
4. Step 4: Simplify right side
   1,336.03x = 1,484,366.81
5. Step 5: Solve for x
   x = 1,484,366.81/1,336.03
6. Step 6: Final answer
   x = 1,111.03