Finding the Fourth Proportional to 3,888.82, 5,394.07 and 3,748.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,888.82 : 5,394.07 = 3,748.72 : x
2. Step 2: Convert to fraction form
   3,888.82/5,394.07 = 3,748.72/x
3. Step 3: Cross multiply
   3,888.82x = 5,394.07 × 3,748.72
4. Step 4: Simplify right side
   3,888.82x = 20,220,858.09
5. Step 5: Solve for x
   x = 20,220,858.09/3,888.82
6. Step 6: Final answer
   x = 5,199.74