Finding the Fourth Proportional to 1,061.15, 1,464.30 and 688.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.15 : 1,464.30 = 688.83 : x
2. Step 2: Convert to fraction form
   1,061.15/1,464.30 = 688.83/x
3. Step 3: Cross multiply
   1,061.15x = 1,464.30 × 688.83
4. Step 4: Simplify right side
   1,061.15x = 1,008,654.33
5. Step 5: Solve for x
   x = 1,008,654.33/1,061.15
6. Step 6: Final answer
   x = 950.53