Finding the Fourth Proportional to 3,488.58, 5,233.86 and 1,408.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,488.58 : 5,233.86 = 1,408.32 : x
2. Step 2: Convert to fraction form
   3,488.58/5,233.86 = 1,408.32/x
3. Step 3: Cross multiply
   3,488.58x = 5,233.86 × 1,408.32
4. Step 4: Simplify right side
   3,488.58x = 7,370,949.72
5. Step 5: Solve for x
   x = 7,370,949.72/3,488.58
6. Step 6: Final answer
   x = 2,112.88