Finding the Fourth Proportional to 3,636.12, 5,452.56 and 1,326

Step by Step Solution

1. Step 1: Write the proportion equation
   3,636.12 : 5,452.56 = 1,326 : x
2. Step 2: Convert to fraction form
   3,636.12/5,452.56 = 1,326/x
3. Step 3: Cross multiply
   3,636.12x = 5,452.56 × 1,326
4. Step 4: Simplify right side
   3,636.12x = 7,230,094.56
5. Step 5: Solve for x
   x = 7,230,094.56/3,636.12
6. Step 6: Final answer
   x = 1,988.41