Finding the Fourth Proportional to 2,150.16, 2,967.12 and 1,218.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,150.16 : 2,967.12 = 1,218.48 : x
2. Step 2: Convert to fraction form
   2,150.16/2,967.12 = 1,218.48/x
3. Step 3: Cross multiply
   2,150.16x = 2,967.12 × 1,218.48
4. Step 4: Simplify right side
   2,150.16x = 3,615,376.38
5. Step 5: Solve for x
   x = 3,615,376.38/2,150.16
6. Step 6: Final answer
   x = 1,681.45