Finding the Fourth Proportional to 1,162.22, 1,741.55 and 722.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,162.22 : 1,741.55 = 722.39 : x
2. Step 2: Convert to fraction form
   1,162.22/1,741.55 = 722.39/x
3. Step 3: Cross multiply
   1,162.22x = 1,741.55 × 722.39
4. Step 4: Simplify right side
   1,162.22x = 1,258,065.98
5. Step 5: Solve for x
   x = 1,258,065.98/1,162.22
6. Step 6: Final answer
   x = 1,082.47