Finding the Fourth Proportional to 1,356.07, 1,870.77 and 958.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,356.07 : 1,870.77 = 958.32 : x
2. Step 2: Convert to fraction form
   1,356.07/1,870.77 = 958.32/x
3. Step 3: Cross multiply
   1,356.07x = 1,870.77 × 958.32
4. Step 4: Simplify right side
   1,356.07x = 1,792,786.95
5. Step 5: Solve for x
   x = 1,792,786.95/1,356.07
6. Step 6: Final answer
   x = 1,322.05