Finding the Fourth Proportional to 1,384.94, 1,911.16 and 755.44

Step by Step Solution

1. Step 1: Write the proportion equation
   1,384.94 : 1,911.16 = 755.44 : x
2. Step 2: Convert to fraction form
   1,384.94/1,911.16 = 755.44/x
3. Step 3: Cross multiply
   1,384.94x = 1,911.16 × 755.44
4. Step 4: Simplify right side
   1,384.94x = 1,443,766.71
5. Step 5: Solve for x
   x = 1,443,766.71/1,384.94
6. Step 6: Final answer
   x = 1,042.48