Finding the Fourth Proportional to 2,319.51, 3,200.79 and 1,271.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,319.51 : 3,200.79 = 1,271.37 : x
2. Step 2: Convert to fraction form
   2,319.51/3,200.79 = 1,271.37/x
3. Step 3: Cross multiply
   2,319.51x = 3,200.79 × 1,271.37
4. Step 4: Simplify right side
   2,319.51x = 4,069,388.38
5. Step 5: Solve for x
   x = 4,069,388.38/2,319.51
6. Step 6: Final answer
   x = 1,754.42