Finding the Fourth Proportional to 7,105.60, 10,663.16 and 2,488.60

Step by Step Solution

1. Step 1: Write the proportion equation
   7,105.60 : 10,663.16 = 2,488.60 : x
2. Step 2: Convert to fraction form
   7,105.60/10,663.16 = 2,488.60/x
3. Step 3: Cross multiply
   7,105.60x = 10,663.16 × 2,488.60
4. Step 4: Simplify right side
   7,105.60x = 26,536,300.88
5. Step 5: Solve for x
   x = 26,536,300.88/7,105.60
6. Step 6: Final answer
   x = 3,734.56