Finding the Fourth Proportional to 3,667.12, 5,486.70 and 3,224.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,667.12 : 5,486.70 = 3,224.86 : x
2. Step 2: Convert to fraction form
   3,667.12/5,486.70 = 3,224.86/x
3. Step 3: Cross multiply
   3,667.12x = 5,486.70 × 3,224.86
4. Step 4: Simplify right side
   3,667.12x = 17,693,839.36
5. Step 5: Solve for x
   x = 17,693,839.36/3,667.12
6. Step 6: Final answer
   x = 4,825.00