Finding the Fourth Proportional to 2,443.68, 3,372.30 and 1,381.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.68 : 3,372.30 = 1,381.50 : x
2. Step 2: Convert to fraction form
   2,443.68/3,372.30 = 1,381.50/x
3. Step 3: Cross multiply
   2,443.68x = 3,372.30 × 1,381.50
4. Step 4: Simplify right side
   2,443.68x = 4,658,832.45
5. Step 5: Solve for x
   x = 4,658,832.45/2,443.68
6. Step 6: Final answer
   x = 1,906.48