Finding the Fourth Proportional to 1,081.34, 1,616.43 and 804.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,081.34 : 1,616.43 = 804.32 : x
2. Step 2: Convert to fraction form
   1,081.34/1,616.43 = 804.32/x
3. Step 3: Cross multiply
   1,081.34x = 1,616.43 × 804.32
4. Step 4: Simplify right side
   1,081.34x = 1,300,126.98
5. Step 5: Solve for x
   x = 1,300,126.98/1,081.34
6. Step 6: Final answer
   x = 1,202.33