Finding the Fourth Proportional to 1,744.78, 2,407.86 and 958.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,744.78 : 2,407.86 = 958.90 : x
2. Step 2: Convert to fraction form
   1,744.78/2,407.86 = 958.90/x
3. Step 3: Cross multiply
   1,744.78x = 2,407.86 × 958.90
4. Step 4: Simplify right side
   1,744.78x = 2,308,896.95
5. Step 5: Solve for x
   x = 2,308,896.95/1,744.78
6. Step 6: Final answer
   x = 1,323.32