Finding the Fourth Proportional to 3,799.98, 5,243.20 and 2,308.57

Step by Step Solution

1. Step 1: Write the proportion equation
   3,799.98 : 5,243.20 = 2,308.57 : x
2. Step 2: Convert to fraction form
   3,799.98/5,243.20 = 2,308.57/x
3. Step 3: Cross multiply
   3,799.98x = 5,243.20 × 2,308.57
4. Step 4: Simplify right side
   3,799.98x = 12,104,275.34
5. Step 5: Solve for x
   x = 12,104,275.34/3,799.98
6. Step 6: Final answer
   x = 3,185.35