Finding the Fourth Proportional to 2,256.36, 3,113.71 and 1,312.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,256.36 : 3,113.71 = 1,312.44 : x
2. Step 2: Convert to fraction form
   2,256.36/3,113.71 = 1,312.44/x
3. Step 3: Cross multiply
   2,256.36x = 3,113.71 × 1,312.44
4. Step 4: Simplify right side
   2,256.36x = 4,086,542.59
5. Step 5: Solve for x
   x = 4,086,542.59/2,256.36
6. Step 6: Final answer
   x = 1,811.12