Finding the Fourth Proportional to 1,778.27, 2,667.38 and 803.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,778.27 : 2,667.38 = 803.69 : x
2. Step 2: Convert to fraction form
   1,778.27/2,667.38 = 803.69/x
3. Step 3: Cross multiply
   1,778.27x = 2,667.38 × 803.69
4. Step 4: Simplify right side
   1,778.27x = 2,143,729.28
5. Step 5: Solve for x
   x = 2,143,729.28/1,778.27
6. Step 6: Final answer
   x = 1,205.52