Finding the Fourth Proportional to 2,376.42, 3,279.24 and 1,328.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,376.42 : 3,279.24 = 1,328.28 : x
2. Step 2: Convert to fraction form
   2,376.42/3,279.24 = 1,328.28/x
3. Step 3: Cross multiply
   2,376.42x = 3,279.24 × 1,328.28
4. Step 4: Simplify right side
   2,376.42x = 4,355,748.91
5. Step 5: Solve for x
   x = 4,355,748.91/2,376.42
6. Step 6: Final answer
   x = 1,832.90