Finding the Fourth Proportional to 3,801.12, 5,724.06 and 3,319.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,801.12 : 5,724.06 = 3,319.98 : x
2. Step 2: Convert to fraction form
   3,801.12/5,724.06 = 3,319.98/x
3. Step 3: Cross multiply
   3,801.12x = 5,724.06 × 3,319.98
4. Step 4: Simplify right side
   3,801.12x = 19,003,764.72
5. Step 5: Solve for x
   x = 19,003,764.72/3,801.12
6. Step 6: Final answer
   x = 4,999.52