Finding the Fourth Proportional to 3,541.76, 4,887.60 and 2,216.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,541.76 : 4,887.60 = 2,216.18 : x
2. Step 2: Convert to fraction form
   3,541.76/4,887.60 = 2,216.18/x
3. Step 3: Cross multiply
   3,541.76x = 4,887.60 × 2,216.18
4. Step 4: Simplify right side
   3,541.76x = 10,831,801.37
5. Step 5: Solve for x
   x = 10,831,801.37/3,541.76
6. Step 6: Final answer
   x = 3,058.31