Finding the Fourth Proportional to 1,142.86, 1,573.05 and 954.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,142.86 : 1,573.05 = 954.22 : x
2. Step 2: Convert to fraction form
   1,142.86/1,573.05 = 954.22/x
3. Step 3: Cross multiply
   1,142.86x = 1,573.05 × 954.22
4. Step 4: Simplify right side
   1,142.86x = 1,501,035.77
5. Step 5: Solve for x
   x = 1,501,035.77/1,142.86
6. Step 6: Final answer
   x = 1,313.40