Finding the Fourth Proportional to 3,123.30, 4,297.20 and 2,372.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,123.30 : 4,297.20 = 2,372.88 : x
2. Step 2: Convert to fraction form
   3,123.30/4,297.20 = 2,372.88/x
3. Step 3: Cross multiply
   3,123.30x = 4,297.20 × 2,372.88
4. Step 4: Simplify right side
   3,123.30x = 10,196,739.94
5. Step 5: Solve for x
   x = 10,196,739.94/3,123.30
6. Step 6: Final answer
   x = 3,264.73