Finding the Fourth Proportional to 2,443.46, 3,371.17 and 1,381.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.46 : 3,371.17 = 1,381.12 : x
2. Step 2: Convert to fraction form
   2,443.46/3,371.17 = 1,381.12/x
3. Step 3: Cross multiply
   2,443.46x = 3,371.17 × 1,381.12
4. Step 4: Simplify right side
   2,443.46x = 4,655,989.35
5. Step 5: Solve for x
   x = 4,655,989.35/2,443.46
6. Step 6: Final answer
   x = 1,905.49