Finding the Fourth Proportional to 2,447.37, 3,671.57 and 1,213.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,447.37 : 3,671.57 = 1,213.34 : x
2. Step 2: Convert to fraction form
   2,447.37/3,671.57 = 1,213.34/x
3. Step 3: Cross multiply
   2,447.37x = 3,671.57 × 1,213.34
4. Step 4: Simplify right side
   2,447.37x = 4,454,847.42
5. Step 5: Solve for x
   x = 4,454,847.42/2,447.37
6. Step 6: Final answer
   x = 1,820.26