Finding the Fourth Proportional to 3,667.80, 5,499.54 and 1,202.70

Step by Step Solution

1. Step 1: Write the proportion equation
   3,667.80 : 5,499.54 = 1,202.70 : x
2. Step 2: Convert to fraction form
   3,667.80/5,499.54 = 1,202.70/x
3. Step 3: Cross multiply
   3,667.80x = 5,499.54 × 1,202.70
4. Step 4: Simplify right side
   3,667.80x = 6,614,296.76
5. Step 5: Solve for x
   x = 6,614,296.76/3,667.80
6. Step 6: Final answer
   x = 1,803.34