Finding the Fourth Proportional to 3,667.30, 5,499.60 and 1,202.20

Step by Step Solution

1. Step 1: Write the proportion equation
   3,667.30 : 5,499.60 = 1,202.20 : x
2. Step 2: Convert to fraction form
   3,667.30/5,499.60 = 1,202.20/x
3. Step 3: Cross multiply
   3,667.30x = 5,499.60 × 1,202.20
4. Step 4: Simplify right side
   3,667.30x = 6,611,619.12
5. Step 5: Solve for x
   x = 6,611,619.12/3,667.30
6. Step 6: Final answer
   x = 1,802.86