Finding the Fourth Proportional to 2,143.20, 2,957.82 and 1,303.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,143.20 : 2,957.82 = 1,303.71 : x
2. Step 2: Convert to fraction form
   2,143.20/2,957.82 = 1,303.71/x
3. Step 3: Cross multiply
   2,143.20x = 2,957.82 × 1,303.71
4. Step 4: Simplify right side
   2,143.20x = 3,856,139.51
5. Step 5: Solve for x
   x = 3,856,139.51/2,143.20
6. Step 6: Final answer
   x = 1,799.24