Finding the Fourth Proportional to 3,238.76, 4,854.50 and 1,288.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,238.76 : 4,854.50 = 1,288.69 : x
2. Step 2: Convert to fraction form
   3,238.76/4,854.50 = 1,288.69/x
3. Step 3: Cross multiply
   3,238.76x = 4,854.50 × 1,288.69
4. Step 4: Simplify right side
   3,238.76x = 6,255,914.89
5. Step 5: Solve for x
   x = 6,255,914.89/3,238.76
6. Step 6: Final answer
   x = 1,931.58