Finding the Fourth Proportional to 3,098.32, 4,277.34 and 2,388.61

Step by Step Solution

1. Step 1: Write the proportion equation
   3,098.32 : 4,277.34 = 2,388.61 : x
2. Step 2: Convert to fraction form
   3,098.32/4,277.34 = 2,388.61/x
3. Step 3: Cross multiply
   3,098.32x = 4,277.34 × 2,388.61
4. Step 4: Simplify right side
   3,098.32x = 10,216,897.10
5. Step 5: Solve for x
   x = 10,216,897.10/3,098.32
6. Step 6: Final answer
   x = 3,297.56