Finding the Fourth Proportional to 1,710.22, 2,564.42 and 722.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,710.22 : 2,564.42 = 722.72 : x
2. Step 2: Convert to fraction form
   1,710.22/2,564.42 = 722.72/x
3. Step 3: Cross multiply
   1,710.22x = 2,564.42 × 722.72
4. Step 4: Simplify right side
   1,710.22x = 1,853,354.01
5. Step 5: Solve for x
   x = 1,853,354.01/1,710.22
6. Step 6: Final answer
   x = 1,083.70