Finding the Fourth Proportional to 1,805.34, 2,706.57 and 709.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,805.34 : 2,706.57 = 709.50 : x
2. Step 2: Convert to fraction form
   1,805.34/2,706.57 = 709.50/x
3. Step 3: Cross multiply
   1,805.34x = 2,706.57 × 709.50
4. Step 4: Simplify right side
   1,805.34x = 1,920,311.42
5. Step 5: Solve for x
   x = 1,920,311.42/1,805.34
6. Step 6: Final answer
   x = 1,063.68