Finding the Fourth Proportional to 1,409.24, 1,944.14 and 911.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,409.24 : 1,944.14 = 911.94 : x
2. Step 2: Convert to fraction form
   1,409.24/1,944.14 = 911.94/x
3. Step 3: Cross multiply
   1,409.24x = 1,944.14 × 911.94
4. Step 4: Simplify right side
   1,409.24x = 1,772,939.03
5. Step 5: Solve for x
   x = 1,772,939.03/1,409.24
6. Step 6: Final answer
   x = 1,258.08