Finding the Fourth Proportional to 2,627.04, 3,936.72 and 1,326.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,627.04 : 3,936.72 = 1,326.72 : x
2. Step 2: Convert to fraction form
   2,627.04/3,936.72 = 1,326.72/x
3. Step 3: Cross multiply
   2,627.04x = 3,936.72 × 1,326.72
4. Step 4: Simplify right side
   2,627.04x = 5,222,925.16
5. Step 5: Solve for x
   x = 5,222,925.16/2,627.04
6. Step 6: Final answer
   x = 1,988.14