Finding the Fourth Proportional to 1,141.86, 1,571.67 and 953.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,141.86 : 1,571.67 = 953.22 : x
2. Step 2: Convert to fraction form
   1,141.86/1,571.67 = 953.22/x
3. Step 3: Cross multiply
   1,141.86x = 1,571.67 × 953.22
4. Step 4: Simplify right side
   1,141.86x = 1,498,147.28
5. Step 5: Solve for x
   x = 1,498,147.28/1,141.86
6. Step 6: Final answer
   x = 1,312.02