Finding the Fourth Proportional to 2,388.89, 3,300.95 and 1,868.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,388.89 : 3,300.95 = 1,868.87 : x
2. Step 2: Convert to fraction form
   2,388.89/3,300.95 = 1,868.87/x
3. Step 3: Cross multiply
   2,388.89x = 3,300.95 × 1,868.87
4. Step 4: Simplify right side
   2,388.89x = 6,169,046.43
5. Step 5: Solve for x
   x = 6,169,046.43/2,388.89
6. Step 6: Final answer
   x = 2,582.39