Finding the Fourth Proportional to 3,630.63, 5,010.18 and 2,118.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,630.63 : 5,010.18 = 2,118.48 : x
2. Step 2: Convert to fraction form
   3,630.63/5,010.18 = 2,118.48/x
3. Step 3: Cross multiply
   3,630.63x = 5,010.18 × 2,118.48
4. Step 4: Simplify right side
   3,630.63x = 10,613,966.13
5. Step 5: Solve for x
   x = 10,613,966.13/3,630.63
6. Step 6: Final answer
   x = 2,923.45