Finding the Fourth Proportional to 3,776.36, 5,667.98 and 1,803.20

Step by Step Solution

1. Step 1: Write the proportion equation
   3,776.36 : 5,667.98 = 1,803.20 : x
2. Step 2: Convert to fraction form
   3,776.36/5,667.98 = 1,803.20/x
3. Step 3: Cross multiply
   3,776.36x = 5,667.98 × 1,803.20
4. Step 4: Simplify right side
   3,776.36x = 10,220,464.18
5. Step 5: Solve for x
   x = 10,220,464.18/3,776.36
6. Step 6: Final answer
   x = 2,706.44