Finding the Fourth Proportional to 2,720.42, 4,071.60 and 2,477.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,720.42 : 4,071.60 = 2,477.54 : x
2. Step 2: Convert to fraction form
   2,720.42/4,071.60 = 2,477.54/x
3. Step 3: Cross multiply
   2,720.42x = 4,071.60 × 2,477.54
4. Step 4: Simplify right side
   2,720.42x = 10,087,551.86
5. Step 5: Solve for x
   x = 10,087,551.86/2,720.42
6. Step 6: Final answer
   x = 3,708.09