Finding the Fourth Proportional to 2,256.00, 3,112.88 and 1,261.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,256.00 : 3,112.88 = 1,261.29 : x
2. Step 2: Convert to fraction form
   2,256.00/3,112.88 = 1,261.29/x
3. Step 3: Cross multiply
   2,256.00x = 3,112.88 × 1,261.29
4. Step 4: Simplify right side
   2,256.00x = 3,926,239.37
5. Step 5: Solve for x
   x = 3,926,239.37/2,256.00
6. Step 6: Final answer
   x = 1,740.35