Finding the Fourth Proportional to 2,627.32, 3,938.20 and 1,326.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,627.32 : 3,938.20 = 1,326.04 : x
2. Step 2: Convert to fraction form
   2,627.32/3,938.20 = 1,326.04/x
3. Step 3: Cross multiply
   2,627.32x = 3,938.20 × 1,326.04
4. Step 4: Simplify right side
   2,627.32x = 5,222,210.73
5. Step 5: Solve for x
   x = 5,222,210.73/2,627.32
6. Step 6: Final answer
   x = 1,987.66