Finding the Fourth Proportional to 734.52, 1,102.59 and 715.89

Step by Step Solution

1. Step 1: Write the proportion equation
   734.52 : 1,102.59 = 715.89 : x
2. Step 2: Convert to fraction form
   734.52/1,102.59 = 715.89/x
3. Step 3: Cross multiply
   734.52x = 1,102.59 × 715.89
4. Step 4: Simplify right side
   734.52x = 789,333.16
5. Step 5: Solve for x
   x = 789,333.16/734.52
6. Step 6: Final answer
   x = 1,074.62