Finding the Fourth Proportional to 3,111.03, 4,278.51 and 2,474.07

Step by Step Solution

1. Step 1: Write the proportion equation
   3,111.03 : 4,278.51 = 2,474.07 : x
2. Step 2: Convert to fraction form
   3,111.03/4,278.51 = 2,474.07/x
3. Step 3: Cross multiply
   3,111.03x = 4,278.51 × 2,474.07
4. Step 4: Simplify right side
   3,111.03x = 10,585,333.24
5. Step 5: Solve for x
   x = 10,585,333.24/3,111.03
6. Step 6: Final answer
   x = 3,402.52