Finding the Fourth Proportional to 2,376.09, 3,279.15 and 1,328.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,376.09 : 3,279.15 = 1,328.15 : x
2. Step 2: Convert to fraction form
   2,376.09/3,279.15 = 1,328.15/x
3. Step 3: Cross multiply
   2,376.09x = 3,279.15 × 1,328.15
4. Step 4: Simplify right side
   2,376.09x = 4,355,211.27
5. Step 5: Solve for x
   x = 4,355,211.27/2,376.09
6. Step 6: Final answer
   x = 1,832.93