Finding the Fourth Proportional to 1,359.14, 1,875.49 and 769.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359.14 : 1,875.49 = 769.64 : x
2. Step 2: Convert to fraction form
   1,359.14/1,875.49 = 769.64/x
3. Step 3: Cross multiply
   1,359.14x = 1,875.49 × 769.64
4. Step 4: Simplify right side
   1,359.14x = 1,443,440.82
5. Step 5: Solve for x
   x = 1,443,440.82/1,359.14
6. Step 6: Final answer
   x = 1,062.03