Finding the Fourth Proportional to 5,410.31, 8,116.38 and 2,488.91

Step by Step Solution

1. Step 1: Write the proportion equation
   5,410.31 : 8,116.38 = 2,488.91 : x
2. Step 2: Convert to fraction form
   5,410.31/8,116.38 = 2,488.91/x
3. Step 3: Cross multiply
   5,410.31x = 8,116.38 × 2,488.91
4. Step 4: Simplify right side
   5,410.31x = 20,200,898.76
5. Step 5: Solve for x
   x = 20,200,898.76/5,410.31
6. Step 6: Final answer
   x = 3,733.78