Finding the Fourth Proportional to 2,319.50, 3,200.91 and 1,271.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,319.50 : 3,200.91 = 1,271.54 : x
2. Step 2: Convert to fraction form
   2,319.50/3,200.91 = 1,271.54/x
3. Step 3: Cross multiply
   2,319.50x = 3,200.91 × 1,271.54
4. Step 4: Simplify right side
   2,319.50x = 4,070,085.10
5. Step 5: Solve for x
   x = 4,070,085.10/2,319.50
6. Step 6: Final answer
   x = 1,754.73