Finding the Fourth Proportional to 2,377.15, 3,279.63 and 1,382.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,377.15 : 3,279.63 = 1,382.20 : x
2. Step 2: Convert to fraction form
   2,377.15/3,279.63 = 1,382.20/x
3. Step 3: Cross multiply
   2,377.15x = 3,279.63 × 1,382.20
4. Step 4: Simplify right side
   2,377.15x = 4,533,104.59
5. Step 5: Solve for x
   x = 4,533,104.59/2,377.15
6. Step 6: Final answer
   x = 1,906.95