Finding the Fourth Proportional to 2,443.24, 3,370.86 and 1,380.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.24 : 3,370.86 = 1,380.87 : x
2. Step 2: Convert to fraction form
   2,443.24/3,370.86 = 1,380.87/x
3. Step 3: Cross multiply
   2,443.24x = 3,370.86 × 1,380.87
4. Step 4: Simplify right side
   2,443.24x = 4,654,719.45
5. Step 5: Solve for x
   x = 4,654,719.45/2,443.24
6. Step 6: Final answer
   x = 1,905.14