Finding the Fourth Proportional to 1,359.27, 1,875.74 and 769.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359.27 : 1,875.74 = 769.77 : x
2. Step 2: Convert to fraction form
   1,359.27/1,875.74 = 769.77/x
3. Step 3: Cross multiply
   1,359.27x = 1,875.74 × 769.77
4. Step 4: Simplify right side
   1,359.27x = 1,443,884.53
5. Step 5: Solve for x
   x = 1,443,884.53/1,359.27
6. Step 6: Final answer
   x = 1,062.25