Finding the Fourth Proportional to 1,778.77, 2,667.24 and 804.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,778.77 : 2,667.24 = 804.34 : x
2. Step 2: Convert to fraction form
   1,778.77/2,667.24 = 804.34/x
3. Step 3: Cross multiply
   1,778.77x = 2,667.24 × 804.34
4. Step 4: Simplify right side
   1,778.77x = 2,145,367.82
5. Step 5: Solve for x
   x = 2,145,367.82/1,778.77
6. Step 6: Final answer
   x = 1,206.10