Finding the Fourth Proportional to 3,076.32, 4,249.52 and 2,386.40

Step by Step Solution

1. Step 1: Write the proportion equation
   3,076.32 : 4,249.52 = 2,386.40 : x
2. Step 2: Convert to fraction form
   3,076.32/4,249.52 = 2,386.40/x
3. Step 3: Cross multiply
   3,076.32x = 4,249.52 × 2,386.40
4. Step 4: Simplify right side
   3,076.32x = 10,141,054.53
5. Step 5: Solve for x
   x = 10,141,054.53/3,076.32
6. Step 6: Final answer
   x = 3,296.49