Finding the Fourth Proportional to 1,434.76, 1,979.82 and 805.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,434.76 : 1,979.82 = 805.32 : x
2. Step 2: Convert to fraction form
   1,434.76/1,979.82 = 805.32/x
3. Step 3: Cross multiply
   1,434.76x = 1,979.82 × 805.32
4. Step 4: Simplify right side
   1,434.76x = 1,594,388.64
5. Step 5: Solve for x
   x = 1,594,388.64/1,434.76
6. Step 6: Final answer
   x = 1,111.26