Finding the Fourth Proportional to 1,196.70, 1,792.59 and 708.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.70 : 1,792.59 = 708.57 : x
2. Step 2: Convert to fraction form
   1,196.70/1,792.59 = 708.57/x
3. Step 3: Cross multiply
   1,196.70x = 1,792.59 × 708.57
4. Step 4: Simplify right side
   1,196.70x = 1,270,175.50
5. Step 5: Solve for x
   x = 1,270,175.50/1,196.70
6. Step 6: Final answer
   x = 1,061.40