Finding the Fourth Proportional to 3,002.72, 4,142.52 and 1,823.60

Step by Step Solution

1. Step 1: Write the proportion equation
   3,002.72 : 4,142.52 = 1,823.60 : x
2. Step 2: Convert to fraction form
   3,002.72/4,142.52 = 1,823.60/x
3. Step 3: Cross multiply
   3,002.72x = 4,142.52 × 1,823.60
4. Step 4: Simplify right side
   3,002.72x = 7,554,299.47
5. Step 5: Solve for x
   x = 7,554,299.47/3,002.72
6. Step 6: Final answer
   x = 2,515.82