Finding the Fourth Proportional to 2,256.39, 3,112.83 and 1,415.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,256.39 : 3,112.83 = 1,415.81 : x
2. Step 2: Convert to fraction form
   2,256.39/3,112.83 = 1,415.81/x
3. Step 3: Cross multiply
   2,256.39x = 3,112.83 × 1,415.81
4. Step 4: Simplify right side
   2,256.39x = 4,407,183.62
5. Step 5: Solve for x
   x = 4,407,183.62/2,256.39
6. Step 6: Final answer
   x = 1,953.20