Finding the Fourth Proportional to 1,142.37, 1,572.36 and 953.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,142.37 : 1,572.36 = 953.73 : x
2. Step 2: Convert to fraction form
   1,142.37/1,572.36 = 953.73/x
3. Step 3: Cross multiply
   1,142.37x = 1,572.36 × 953.73
4. Step 4: Simplify right side
   1,142.37x = 1,499,606.90
5. Step 5: Solve for x
   x = 1,499,606.90/1,142.37
6. Step 6: Final answer
   x = 1,312.72