Finding the Fourth Proportional to 3,973.65, 5,483.43 and 2,205.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,973.65 : 5,483.43 = 2,205.15 : x
2. Step 2: Convert to fraction form
   3,973.65/5,483.43 = 2,205.15/x
3. Step 3: Cross multiply
   3,973.65x = 5,483.43 × 2,205.15
4. Step 4: Simplify right side
   3,973.65x = 12,091,785.66
5. Step 5: Solve for x
   x = 12,091,785.66/3,973.65
6. Step 6: Final answer
   x = 3,042.99