Finding the Fourth Proportional to 3,361.34, 4,635.78 and 2,166.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,361.34 : 4,635.78 = 2,166.56 : x
2. Step 2: Convert to fraction form
   3,361.34/4,635.78 = 2,166.56/x
3. Step 3: Cross multiply
   3,361.34x = 4,635.78 × 2,166.56
4. Step 4: Simplify right side
   3,361.34x = 10,043,695.52
5. Step 5: Solve for x
   x = 10,043,695.52/3,361.34
6. Step 6: Final answer
   x = 2,988.00