Finding the Fourth Proportional to 2,477.88, 3,717.27 and 2,019.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,477.88 : 3,717.27 = 2,019.72 : x
2. Step 2: Convert to fraction form
   2,477.88/3,717.27 = 2,019.72/x
3. Step 3: Cross multiply
   2,477.88x = 3,717.27 × 2,019.72
4. Step 4: Simplify right side
   2,477.88x = 7,507,844.56
5. Step 5: Solve for x
   x = 7,507,844.56/2,477.88
6. Step 6: Final answer
   x = 3,029.95