Finding the Fourth Proportional to 2,319.02, 3,200.31 and 1,271.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,319.02 : 3,200.31 = 1,271.07 : x
2. Step 2: Convert to fraction form
   2,319.02/3,200.31 = 1,271.07/x
3. Step 3: Cross multiply
   2,319.02x = 3,200.31 × 1,271.07
4. Step 4: Simplify right side
   2,319.02x = 4,067,818.03
5. Step 5: Solve for x
   x = 4,067,818.03/2,319.02
6. Step 6: Final answer
   x = 1,754.11