Finding the Fourth Proportional to 1,722.42, 2,584.20 and 735.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,722.42 : 2,584.20 = 735.20 : x
2. Step 2: Convert to fraction form
   1,722.42/2,584.20 = 735.20/x
3. Step 3: Cross multiply
   1,722.42x = 2,584.20 × 735.20
4. Step 4: Simplify right side
   1,722.42x = 1,899,910.30
5. Step 5: Solve for x
   x = 1,899,910.30/1,722.42
6. Step 6: Final answer
   x = 1,103.05