Finding the Fourth Proportional to 3,488.50, 5,253.38 and 2,521.36

Step by Step Solution

1. Step 1: Write the proportion equation
   3,488.50 : 5,253.38 = 2,521.36 : x
2. Step 2: Convert to fraction form
   3,488.50/5,253.38 = 2,521.36/x
3. Step 3: Cross multiply
   3,488.50x = 5,253.38 × 2,521.36
4. Step 4: Simplify right side
   3,488.50x = 13,245,636.46
5. Step 5: Solve for x
   x = 13,245,636.46/3,488.50
6. Step 6: Final answer
   x = 3,796.95