Finding the Fourth Proportional to 1,967.17, 2,714.94 and 1,128.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,967.17 : 2,714.94 = 1,128.01 : x
2. Step 2: Convert to fraction form
   1,967.17/2,714.94 = 1,128.01/x
3. Step 3: Cross multiply
   1,967.17x = 2,714.94 × 1,128.01
4. Step 4: Simplify right side
   1,967.17x = 3,062,479.47
5. Step 5: Solve for x
   x = 3,062,479.47/1,967.17
6. Step 6: Final answer
   x = 1,556.79