Finding the Fourth Proportional to 3,667.12, 5,500.36 and 1,069.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,667.12 : 5,500.36 = 1,069.88 : x
2. Step 2: Convert to fraction form
   3,667.12/5,500.36 = 1,069.88/x
3. Step 3: Cross multiply
   3,667.12x = 5,500.36 × 1,069.88
4. Step 4: Simplify right side
   3,667.12x = 5,884,725.16
5. Step 5: Solve for x
   x = 5,884,725.16/3,667.12
6. Step 6: Final answer
   x = 1,604.73