Finding the Fourth Proportional to 1,064.88, 1,468.20 and 691.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,064.88 : 1,468.20 = 691.32 : x
2. Step 2: Convert to fraction form
   1,064.88/1,468.20 = 691.32/x
3. Step 3: Cross multiply
   1,064.88x = 1,468.20 × 691.32
4. Step 4: Simplify right side
   1,064.88x = 1,014,996.02
5. Step 5: Solve for x
   x = 1,014,996.02/1,064.88
6. Step 6: Final answer
   x = 953.16