Finding the Fourth Proportional to 1,034.24, 1,426.28 and 661.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,034.24 : 1,426.28 = 661.34 : x
2. Step 2: Convert to fraction form
   1,034.24/1,426.28 = 661.34/x
3. Step 3: Cross multiply
   1,034.24x = 1,426.28 × 661.34
4. Step 4: Simplify right side
   1,034.24x = 943,256.27
5. Step 5: Solve for x
   x = 943,256.27/1,034.24
6. Step 6: Final answer
   x = 912.03