Finding the Fourth Proportional to 3,288.63, 4,933.40 and 1,208.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,288.63 : 4,933.40 = 1,208.15 : x
2. Step 2: Convert to fraction form
   3,288.63/4,933.40 = 1,208.15/x
3. Step 3: Cross multiply
   3,288.63x = 4,933.40 × 1,208.15
4. Step 4: Simplify right side
   3,288.63x = 5,960,256.50
5. Step 5: Solve for x
   x = 5,960,256.50/3,288.63
6. Step 6: Final answer
   x = 1,812.38