Finding the Fourth Proportional to 3,636.02, 5,445.72 and 2,172.17

Step by Step Solution

1. Step 1: Write the proportion equation
   3,636.02 : 5,445.72 = 2,172.17 : x
2. Step 2: Convert to fraction form
   3,636.02/5,445.72 = 2,172.17/x
3. Step 3: Cross multiply
   3,636.02x = 5,445.72 × 2,172.17
4. Step 4: Simplify right side
   3,636.02x = 11,829,002.38
5. Step 5: Solve for x
   x = 11,829,002.38/3,636.02
6. Step 6: Final answer
   x = 3,253.29