Finding the Fourth Proportional to 3,513.72, 4,851.72 and 2,726.40

Step by Step Solution

1. Step 1: Write the proportion equation
   3,513.72 : 4,851.72 = 2,726.40 : x
2. Step 2: Convert to fraction form
   3,513.72/4,851.72 = 2,726.40/x
3. Step 3: Cross multiply
   3,513.72x = 4,851.72 × 2,726.40
4. Step 4: Simplify right side
   3,513.72x = 13,227,729.41
5. Step 5: Solve for x
   x = 13,227,729.41/3,513.72
6. Step 6: Final answer
   x = 3,764.59