Finding the Fourth Proportional to 1,238.32, 1,708.46 and 706.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,238.32 : 1,708.46 = 706.82 : x
2. Step 2: Convert to fraction form
   1,238.32/1,708.46 = 706.82/x
3. Step 3: Cross multiply
   1,238.32x = 1,708.46 × 706.82
4. Step 4: Simplify right side
   1,238.32x = 1,207,573.88
5. Step 5: Solve for x
   x = 1,207,573.88/1,238.32
6. Step 6: Final answer
   x = 975.17