Finding the Fourth Proportional to 2,258.01, 3,115.86 and 1,313.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,258.01 : 3,115.86 = 1,313.62 : x
2. Step 2: Convert to fraction form
   2,258.01/3,115.86 = 1,313.62/x
3. Step 3: Cross multiply
   2,258.01x = 3,115.86 × 1,313.62
4. Step 4: Simplify right side
   2,258.01x = 4,093,056.01
5. Step 5: Solve for x
   x = 4,093,056.01/2,258.01
6. Step 6: Final answer
   x = 1,812.68