Finding the Fourth Proportional to 2,449.42, 3,673.12 and 1,200.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,449.42 : 3,673.12 = 1,200.55 : x
2. Step 2: Convert to fraction form
   2,449.42/3,673.12 = 1,200.55/x
3. Step 3: Cross multiply
   2,449.42x = 3,673.12 × 1,200.55
4. Step 4: Simplify right side
   2,449.42x = 4,409,764.22
5. Step 5: Solve for x
   x = 4,409,764.22/2,449.42
6. Step 6: Final answer
   x = 1,800.33