Finding the Fourth Proportional to 5,317.10, 7,976.52 and 1,618.48

Step by Step Solution

1. Step 1: Write the proportion equation
   5,317.10 : 7,976.52 = 1,618.48 : x
2. Step 2: Convert to fraction form
   5,317.10/7,976.52 = 1,618.48/x
3. Step 3: Cross multiply
   5,317.10x = 7,976.52 × 1,618.48
4. Step 4: Simplify right side
   5,317.10x = 12,909,818.15
5. Step 5: Solve for x
   x = 12,909,818.15/5,317.10
6. Step 6: Final answer
   x = 2,427.98