Finding the Fourth Proportional to 3,111.42, 4,299.96 and 2,551.02

Step by Step Solution

1. Step 1: Write the proportion equation
   3,111.42 : 4,299.96 = 2,551.02 : x
2. Step 2: Convert to fraction form
   3,111.42/4,299.96 = 2,551.02/x
3. Step 3: Cross multiply
   3,111.42x = 4,299.96 × 2,551.02
4. Step 4: Simplify right side
   3,111.42x = 10,969,283.96
5. Step 5: Solve for x
   x = 10,969,283.96/3,111.42
6. Step 6: Final answer
   x = 3,525.49