Finding the Fourth Proportional to 1,967.22, 2,714.96 and 1,128.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,967.22 : 2,714.96 = 1,128.19 : x
2. Step 2: Convert to fraction form
   1,967.22/2,714.96 = 1,128.19/x
3. Step 3: Cross multiply
   1,967.22x = 2,714.96 × 1,128.19
4. Step 4: Simplify right side
   1,967.22x = 3,062,990.72
5. Step 5: Solve for x
   x = 3,062,990.72/1,967.22
6. Step 6: Final answer
   x = 1,557.01