Finding the Fourth Proportional to 1,034.89, 1,426.82 and 661.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,034.89 : 1,426.82 = 661.25 : x
2. Step 2: Convert to fraction form
   1,034.89/1,426.82 = 661.25/x
3. Step 3: Cross multiply
   1,034.89x = 1,426.82 × 661.25
4. Step 4: Simplify right side
   1,034.89x = 943,484.73
5. Step 5: Solve for x
   x = 943,484.73/1,034.89
6. Step 6: Final answer
   x = 911.68