Finding the Fourth Proportional to 1,302.89, 1,797.59 and 805.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,302.89 : 1,797.59 = 805.34 : x
2. Step 2: Convert to fraction form
   1,302.89/1,797.59 = 805.34/x
3. Step 3: Cross multiply
   1,302.89x = 1,797.59 × 805.34
4. Step 4: Simplify right side
   1,302.89x = 1,447,677.64
5. Step 5: Solve for x
   x = 1,447,677.64/1,302.89
6. Step 6: Final answer
   x = 1,111.13