Finding the Fourth Proportional to 3,196.45, 4,788.40 and 2,848.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,196.45 : 4,788.40 = 2,848.15 : x
2. Step 2: Convert to fraction form
   3,196.45/4,788.40 = 2,848.15/x
3. Step 3: Cross multiply
   3,196.45x = 4,788.40 × 2,848.15
4. Step 4: Simplify right side
   3,196.45x = 13,638,081.46
5. Step 5: Solve for x
   x = 13,638,081.46/3,196.45
6. Step 6: Final answer
   x = 4,266.63