Finding the Fourth Proportional to 2,439.33, 3,366.18 and 1,377.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,439.33 : 3,366.18 = 1,377.15 : x
2. Step 2: Convert to fraction form
   2,439.33/3,366.18 = 1,377.15/x
3. Step 3: Cross multiply
   2,439.33x = 3,366.18 × 1,377.15
4. Step 4: Simplify right side
   2,439.33x = 4,635,734.79
5. Step 5: Solve for x
   x = 4,635,734.79/2,439.33
6. Step 6: Final answer
   x = 1,900.41