Finding the Fourth Proportional to 2,835.72, 4,228.56 and 2,490.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,835.72 : 4,228.56 = 2,490.48 : x
2. Step 2: Convert to fraction form
   2,835.72/4,228.56 = 2,490.48/x
3. Step 3: Cross multiply
   2,835.72x = 4,228.56 × 2,490.48
4. Step 4: Simplify right side
   2,835.72x = 10,531,144.11
5. Step 5: Solve for x
   x = 10,531,144.11/2,835.72
6. Step 6: Final answer
   x = 3,713.75