Finding the Fourth Proportional to 3,113.15, 4,301.61 and 2,488.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,113.15 : 4,301.61 = 2,488.83 : x
2. Step 2: Convert to fraction form
   3,113.15/4,301.61 = 2,488.83/x
3. Step 3: Cross multiply
   3,113.15x = 4,301.61 × 2,488.83
4. Step 4: Simplify right side
   3,113.15x = 10,705,976.02
5. Step 5: Solve for x
   x = 10,705,976.02/3,113.15
6. Step 6: Final answer
   x = 3,438.95