Finding the Fourth Proportional to 1,366.38, 1,885.71 and 776.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,366.38 : 1,885.71 = 776.94 : x
2. Step 2: Convert to fraction form
   1,366.38/1,885.71 = 776.94/x
3. Step 3: Cross multiply
   1,366.38x = 1,885.71 × 776.94
4. Step 4: Simplify right side
   1,366.38x = 1,465,083.53
5. Step 5: Solve for x
   x = 1,465,083.53/1,366.38
6. Step 6: Final answer
   x = 1,072.24