Finding the Fourth Proportional to 2,375.82, 3,278.34 and 1,380.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,375.82 : 3,278.34 = 1,380.96 : x
2. Step 2: Convert to fraction form
   2,375.82/3,278.34 = 1,380.96/x
3. Step 3: Cross multiply
   2,375.82x = 3,278.34 × 1,380.96
4. Step 4: Simplify right side
   2,375.82x = 4,527,256.41
5. Step 5: Solve for x
   x = 4,527,256.41/2,375.82
6. Step 6: Final answer
   x = 1,905.56