Finding the Fourth Proportional to 1,359.24, 1,875.78 and 769.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359.24 : 1,875.78 = 769.74 : x
2. Step 2: Convert to fraction form
   1,359.24/1,875.78 = 769.74/x
3. Step 3: Cross multiply
   1,359.24x = 1,875.78 × 769.74
4. Step 4: Simplify right side
   1,359.24x = 1,443,862.90
5. Step 5: Solve for x
   x = 1,443,862.90/1,359.24
6. Step 6: Final answer
   x = 1,062.26