Finding the Fourth Proportional to 1,384.92, 1,911.24 and 755.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,384.92 : 1,911.24 = 755.46 : x
2. Step 2: Convert to fraction form
   1,384.92/1,911.24 = 755.46/x
3. Step 3: Cross multiply
   1,384.92x = 1,911.24 × 755.46
4. Step 4: Simplify right side
   1,384.92x = 1,443,865.37
5. Step 5: Solve for x
   x = 1,443,865.37/1,384.92
6. Step 6: Final answer
   x = 1,042.56