Finding the Fourth Proportional to 1,104.01, 1,522.72 and 661.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,104.01 : 1,522.72 = 661.75 : x
2. Step 2: Convert to fraction form
   1,104.01/1,522.72 = 661.75/x
3. Step 3: Cross multiply
   1,104.01x = 1,522.72 × 661.75
4. Step 4: Simplify right side
   1,104.01x = 1,007,659.96
5. Step 5: Solve for x
   x = 1,007,659.96/1,104.01
6. Step 6: Final answer
   x = 912.73