Finding the Fourth Proportional to 2,128.83, 3,194.01 and 958.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128.83 : 3,194.01 = 958.71 : x
2. Step 2: Convert to fraction form
   2,128.83/3,194.01 = 958.71/x
3. Step 3: Cross multiply
   2,128.83x = 3,194.01 × 958.71
4. Step 4: Simplify right side
   2,128.83x = 3,062,129.63
5. Step 5: Solve for x
   x = 3,062,129.63/2,128.83
6. Step 6: Final answer
   x = 1,438.41