Finding the Fourth Proportional to 2,165.43, 2,988.24 and 1,281.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,165.43 : 2,988.24 = 1,281.25 : x
2. Step 2: Convert to fraction form
   2,165.43/2,988.24 = 1,281.25/x
3. Step 3: Cross multiply
   2,165.43x = 2,988.24 × 1,281.25
4. Step 4: Simplify right side
   2,165.43x = 3,828,667.56
5. Step 5: Solve for x
   x = 3,828,667.56/2,165.43
6. Step 6: Final answer
   x = 1,768.09