Finding the Fourth Proportional to 1,063.74, 1,467.15 and 690.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,063.74 : 1,467.15 = 690.81 : x
2. Step 2: Convert to fraction form
   1,063.74/1,467.15 = 690.81/x
3. Step 3: Cross multiply
   1,063.74x = 1,467.15 × 690.81
4. Step 4: Simplify right side
   1,063.74x = 1,013,521.89
5. Step 5: Solve for x
   x = 1,013,521.89/1,063.74
6. Step 6: Final answer
   x = 952.79