Finding the Fourth Proportional to 1,060.68, 1,462.77 and 661.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,060.68 : 1,462.77 = 661.83 : x
2. Step 2: Convert to fraction form
   1,060.68/1,462.77 = 661.83/x
3. Step 3: Cross multiply
   1,060.68x = 1,462.77 × 661.83
4. Step 4: Simplify right side
   1,060.68x = 968,105.07
5. Step 5: Solve for x
   x = 968,105.07/1,060.68
6. Step 6: Final answer
   x = 912.72