Finding the Fourth Proportional to 1,046.54, 1,442.17 and 945.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,046.54 : 1,442.17 = 945.86 : x
2. Step 2: Convert to fraction form
   1,046.54/1,442.17 = 945.86/x
3. Step 3: Cross multiply
   1,046.54x = 1,442.17 × 945.86
4. Step 4: Simplify right side
   1,046.54x = 1,364,090.92
5. Step 5: Solve for x
   x = 1,364,090.92/1,046.54
6. Step 6: Final answer
   x = 1,303.43