Finding the Fourth Proportional to 1,525.71, 2,106.51 and 958.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,525.71 : 2,106.51 = 958.79 : x
2. Step 2: Convert to fraction form
   1,525.71/2,106.51 = 958.79/x
3. Step 3: Cross multiply
   1,525.71x = 2,106.51 × 958.79
4. Step 4: Simplify right side
   1,525.71x = 2,019,700.72
5. Step 5: Solve for x
   x = 2,019,700.72/1,525.71
6. Step 6: Final answer
   x = 1,323.78