Finding the Fourth Proportional to 3,223.86, 4,828.56 and 2,801.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,223.86 : 4,828.56 = 2,801.98 : x
2. Step 2: Convert to fraction form
   3,223.86/4,828.56 = 2,801.98/x
3. Step 3: Cross multiply
   3,223.86x = 4,828.56 × 2,801.98
4. Step 4: Simplify right side
   3,223.86x = 13,529,528.55
5. Step 5: Solve for x
   x = 13,529,528.55/3,223.86
6. Step 6: Final answer
   x = 4,196.69