Finding the Fourth Proportional to 2,552.70, 3,825.81 and 1,317.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,552.70 : 3,825.81 = 1,317.72 : x
2. Step 2: Convert to fraction form
   2,552.70/3,825.81 = 1,317.72/x
3. Step 3: Cross multiply
   2,552.70x = 3,825.81 × 1,317.72
4. Step 4: Simplify right side
   2,552.70x = 5,041,346.35
5. Step 5: Solve for x
   x = 5,041,346.35/2,552.70
6. Step 6: Final answer
   x = 1,974.91