Finding the Fourth Proportional to 1,152.69, 1,729.35 and 708.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152.69 : 1,729.35 = 708.48 : x
2. Step 2: Convert to fraction form
   1,152.69/1,729.35 = 708.48/x
3. Step 3: Cross multiply
   1,152.69x = 1,729.35 × 708.48
4. Step 4: Simplify right side
   1,152.69x = 1,225,209.89
5. Step 5: Solve for x
   x = 1,225,209.89/1,152.69
6. Step 6: Final answer
   x = 1,062.91