Finding the Fourth Proportional to 2,886.32, 4,329.78 and 1,326.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,886.32 : 4,329.78 = 1,326.06 : x
2. Step 2: Convert to fraction form
   2,886.32/4,329.78 = 1,326.06/x
3. Step 3: Cross multiply
   2,886.32x = 4,329.78 × 1,326.06
4. Step 4: Simplify right side
   2,886.32x = 5,741,548.07
5. Step 5: Solve for x
   x = 5,741,548.07/2,886.32
6. Step 6: Final answer
   x = 1,989.23