Finding the Fourth Proportional to 2,663.37, 3,994.92 and 2,583.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,663.37 : 3,994.92 = 2,583.18 : x
2. Step 2: Convert to fraction form
   2,663.37/3,994.92 = 2,583.18/x
3. Step 3: Cross multiply
   2,663.37x = 3,994.92 × 2,583.18
4. Step 4: Simplify right side
   2,663.37x = 10,319,597.45
5. Step 5: Solve for x
   x = 10,319,597.45/2,663.37
6. Step 6: Final answer
   x = 3,874.64