Finding the Fourth Proportional to 1,956.73, 2,699.38 and 1,128.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,956.73 : 2,699.38 = 1,128.25 : x
2. Step 2: Convert to fraction form
   1,956.73/2,699.38 = 1,128.25/x
3. Step 3: Cross multiply
   1,956.73x = 2,699.38 × 1,128.25
4. Step 4: Simplify right side
   1,956.73x = 3,045,575.49
5. Step 5: Solve for x
   x = 3,045,575.49/1,956.73
6. Step 6: Final answer
   x = 1,556.46