Finding the Fourth Proportional to 2,638.93, 3,642.02 and 1,576.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,638.93 : 3,642.02 = 1,576.48 : x
2. Step 2: Convert to fraction form
   2,638.93/3,642.02 = 1,576.48/x
3. Step 3: Cross multiply
   2,638.93x = 3,642.02 × 1,576.48
4. Step 4: Simplify right side
   2,638.93x = 5,741,571.69
5. Step 5: Solve for x
   x = 5,741,571.69/2,638.93
6. Step 6: Final answer
   x = 2,175.72