Finding the Fourth Proportional to 2,443.81, 3,372.42 and 1,381.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.81 : 3,372.42 = 1,381.56 : x
2. Step 2: Convert to fraction form
   2,443.81/3,372.42 = 1,381.56/x
3. Step 3: Cross multiply
   2,443.81x = 3,372.42 × 1,381.56
4. Step 4: Simplify right side
   2,443.81x = 4,659,194.82
5. Step 5: Solve for x
   x = 4,659,194.82/2,443.81
6. Step 6: Final answer
   x = 1,906.53