Finding the Fourth Proportional to 2,848.56, 4,271.59 and 1,288.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,848.56 : 4,271.59 = 1,288.50 : x
2. Step 2: Convert to fraction form
   2,848.56/4,271.59 = 1,288.50/x
3. Step 3: Cross multiply
   2,848.56x = 4,271.59 × 1,288.50
4. Step 4: Simplify right side
   2,848.56x = 5,503,946.09
5. Step 5: Solve for x
   x = 5,503,946.09/2,848.56
6. Step 6: Final answer
   x = 1,932.18