Finding the Fourth Proportional to 3,418.83, 5,139.72 and 2,697.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,418.83 : 5,139.72 = 2,697.12 : x
2. Step 2: Convert to fraction form
   3,418.83/5,139.72 = 2,697.12/x
3. Step 3: Cross multiply
   3,418.83x = 5,139.72 × 2,697.12
4. Step 4: Simplify right side
   3,418.83x = 13,862,441.61
5. Step 5: Solve for x
   x = 13,862,441.61/3,418.83
6. Step 6: Final answer
   x = 4,054.73