Finding the Fourth Proportional to 2,162.64, 2,984.42 and 1,279.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,162.64 : 2,984.42 = 1,279.18 : x
2. Step 2: Convert to fraction form
   2,162.64/2,984.42 = 1,279.18/x
3. Step 3: Cross multiply
   2,162.64x = 2,984.42 × 1,279.18
4. Step 4: Simplify right side
   2,162.64x = 3,817,610.38
5. Step 5: Solve for x
   x = 3,817,610.38/2,162.64
6. Step 6: Final answer
   x = 1,765.25