Finding the Fourth Proportional to 1,358.94, 1,875.43 and 769.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,358.94 : 1,875.43 = 769.48 : x
2. Step 2: Convert to fraction form
   1,358.94/1,875.43 = 769.48/x
3. Step 3: Cross multiply
   1,358.94x = 1,875.43 × 769.48
4. Step 4: Simplify right side
   1,358.94x = 1,443,105.88
5. Step 5: Solve for x
   x = 1,443,105.88/1,358.94
6. Step 6: Final answer
   x = 1,061.93