Finding the Fourth Proportional to 2,361.51, 3,258.72 and 1,313.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,361.51 : 3,258.72 = 1,313.55 : x
2. Step 2: Convert to fraction form
   2,361.51/3,258.72 = 1,313.55/x
3. Step 3: Cross multiply
   2,361.51x = 3,258.72 × 1,313.55
4. Step 4: Simplify right side
   2,361.51x = 4,280,491.66
5. Step 5: Solve for x
   x = 4,280,491.66/2,361.51
6. Step 6: Final answer
   x = 1,812.61