Finding the Fourth Proportional to 2,624.52, 3,936.72 and 1,325.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,624.52 : 3,936.72 = 1,325.64 : x
2. Step 2: Convert to fraction form
   2,624.52/3,936.72 = 1,325.64/x
3. Step 3: Cross multiply
   2,624.52x = 3,936.72 × 1,325.64
4. Step 4: Simplify right side
   2,624.52x = 5,218,673.50
5. Step 5: Solve for x
   x = 5,218,673.50/2,624.52
6. Step 6: Final answer
   x = 1,988.43