Finding the Fourth Proportional to 2,633.18, 3,630.42 and 2,159.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,633.18 : 3,630.42 = 2,159.36 : x
2. Step 2: Convert to fraction form
   2,633.18/3,630.42 = 2,159.36/x
3. Step 3: Cross multiply
   2,633.18x = 3,630.42 × 2,159.36
4. Step 4: Simplify right side
   2,633.18x = 7,839,383.73
5. Step 5: Solve for x
   x = 7,839,383.73/2,633.18
6. Step 6: Final answer
   x = 2,977.15