Finding the Fourth Proportional to 2,388.66, 3,296.28 and 1,326.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,388.66 : 3,296.28 = 1,326.42 : x
2. Step 2: Convert to fraction form
   2,388.66/3,296.28 = 1,326.42/x
3. Step 3: Cross multiply
   2,388.66x = 3,296.28 × 1,326.42
4. Step 4: Simplify right side
   2,388.66x = 4,372,251.72
5. Step 5: Solve for x
   x = 4,372,251.72/2,388.66
6. Step 6: Final answer
   x = 1,830.42