Finding the Fourth Proportional to 1,064.25, 1,467.72 and 690.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,064.25 : 1,467.72 = 690.88 : x
2. Step 2: Convert to fraction form
   1,064.25/1,467.72 = 690.88/x
3. Step 3: Cross multiply
   1,064.25x = 1,467.72 × 690.88
4. Step 4: Simplify right side
   1,064.25x = 1,014,014.72
5. Step 5: Solve for x
   x = 1,014,014.72/1,064.25
6. Step 6: Final answer
   x = 952.80