Finding the Fourth Proportional to 3,984.03, 5,498.28 and 2,215.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,984.03 : 5,498.28 = 2,215.98 : x
2. Step 2: Convert to fraction form
   3,984.03/5,498.28 = 2,215.98/x
3. Step 3: Cross multiply
   3,984.03x = 5,498.28 × 2,215.98
4. Step 4: Simplify right side
   3,984.03x = 12,184,078.51
5. Step 5: Solve for x
   x = 12,184,078.51/3,984.03
6. Step 6: Final answer
   x = 3,058.23