Finding the Fourth Proportional to 1,409.27, 1,944.74 and 779.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,409.27 : 1,944.74 = 779.76 : x
2. Step 2: Convert to fraction form
   1,409.27/1,944.74 = 779.76/x
3. Step 3: Cross multiply
   1,409.27x = 1,944.74 × 779.76
4. Step 4: Simplify right side
   1,409.27x = 1,516,426.56
5. Step 5: Solve for x
   x = 1,516,426.56/1,409.27
6. Step 6: Final answer
   x = 1,076.04