Finding the Fourth Proportional to 1,967.40, 2,714.76 and 1,128.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,967.40 : 2,714.76 = 1,128.24 : x
2. Step 2: Convert to fraction form
   1,967.40/2,714.76 = 1,128.24/x
3. Step 3: Cross multiply
   1,967.40x = 2,714.76 × 1,128.24
4. Step 4: Simplify right side
   1,967.40x = 3,062,900.82
5. Step 5: Solve for x
   x = 3,062,900.82/1,967.40
6. Step 6: Final answer
   x = 1,556.83