Finding the Fourth Proportional to 3,667.88, 5,497.70 and 1,820.33

Step by Step Solution

1. Step 1: Write the proportion equation
   3,667.88 : 5,497.70 = 1,820.33 : x
2. Step 2: Convert to fraction form
   3,667.88/5,497.70 = 1,820.33/x
3. Step 3: Cross multiply
   3,667.88x = 5,497.70 × 1,820.33
4. Step 4: Simplify right side
   3,667.88x = 10,007,591.65
5. Step 5: Solve for x
   x = 10,007,591.65/3,667.88
6. Step 6: Final answer
   x = 2,728.44