Finding the Fourth Proportional to 3,696.76, 5,546.82 and 3,213.16

Step by Step Solution

1. Step 1: Write the proportion equation
   3,696.76 : 5,546.82 = 3,213.16 : x
2. Step 2: Convert to fraction form
   3,696.76/5,546.82 = 3,213.16/x
3. Step 3: Cross multiply
   3,696.76x = 5,546.82 × 3,213.16
4. Step 4: Simplify right side
   3,696.76x = 17,822,820.15
5. Step 5: Solve for x
   x = 17,822,820.15/3,696.76
6. Step 6: Final answer
   x = 4,821.20