Finding the Fourth Proportional to 3,973.78, 5,484.28 and 2,205.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,973.78 : 5,484.28 = 2,205.50 : x
2. Step 2: Convert to fraction form
   3,973.78/5,484.28 = 2,205.50/x
3. Step 3: Cross multiply
   3,973.78x = 5,484.28 × 2,205.50
4. Step 4: Simplify right side
   3,973.78x = 12,095,541.09
5. Step 5: Solve for x
   x = 12,095,541.09/3,973.78
6. Step 6: Final answer
   x = 3,043.84