Finding the Fourth Proportional to 3,780, 5,667.55 and 1,804.55

Step by Step Solution

1. Step 1: Write the proportion equation
   3,780 : 5,667.55 = 1,804.55 : x
2. Step 2: Convert to fraction form
   3,780/5,667.55 = 1,804.55/x
3. Step 3: Cross multiply
   3,780x = 5,667.55 × 1,804.55
4. Step 4: Simplify right side
   3,780x = 10,227,344.50
5. Step 5: Solve for x
   x = 10,227,344.50/3,780
6. Step 6: Final answer
   x = 2,705.65