Finding the Fourth Proportional to 3,699.22, 5,516.12 and 3,666.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,699.22 : 5,516.12 = 3,666.28 : x
2. Step 2: Convert to fraction form
   3,699.22/5,516.12 = 3,666.28/x
3. Step 3: Cross multiply
   3,699.22x = 5,516.12 × 3,666.28
4. Step 4: Simplify right side
   3,699.22x = 20,223,640.43
5. Step 5: Solve for x
   x = 20,223,640.43/3,699.22
6. Step 6: Final answer
   x = 5,467.00