Finding the Fourth Proportional to 3,504.82, 5,258.37 and 1,313.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,504.82 : 5,258.37 = 1,313.72 : x
2. Step 2: Convert to fraction form
   3,504.82/5,258.37 = 1,313.72/x
3. Step 3: Cross multiply
   3,504.82x = 5,258.37 × 1,313.72
4. Step 4: Simplify right side
   3,504.82x = 6,908,016.80
5. Step 5: Solve for x
   x = 6,908,016.80/3,504.82
6. Step 6: Final answer
   x = 1,971.01