Finding the Fourth Proportional to 2,856.52, 4,284.54 and 1,317.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,856.52 : 4,284.54 = 1,317.52 : x
2. Step 2: Convert to fraction form
   2,856.52/4,284.54 = 1,317.52/x
3. Step 3: Cross multiply
   2,856.52x = 4,284.54 × 1,317.52
4. Step 4: Simplify right side
   2,856.52x = 5,644,967.14
5. Step 5: Solve for x
   x = 5,644,967.14/2,856.52
6. Step 6: Final answer
   x = 1,976.17