Finding the Fourth Proportional to 2,150.25, 2,967.35 and 1,218.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,150.25 : 2,967.35 = 1,218.75 : x
2. Step 2: Convert to fraction form
   2,150.25/2,967.35 = 1,218.75/x
3. Step 3: Cross multiply
   2,150.25x = 2,967.35 × 1,218.75
4. Step 4: Simplify right side
   2,150.25x = 3,616,451.72
5. Step 5: Solve for x
   x = 3,616,451.72/2,150.25
6. Step 6: Final answer
   x = 1,681.88