Finding the Fourth Proportional to 2,672.95, 3,981.24 and 2,553.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,672.95 : 3,981.24 = 2,553.02 : x
2. Step 2: Convert to fraction form
   2,672.95/3,981.24 = 2,553.02/x
3. Step 3: Cross multiply
   2,672.95x = 3,981.24 × 2,553.02
4. Step 4: Simplify right side
   2,672.95x = 10,164,176.78
5. Step 5: Solve for x
   x = 10,164,176.78/2,672.95
6. Step 6: Final answer
   x = 3,802.61