Finding the Fourth Proportional to 1,336.60, 1,844.27 and 776.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,336.60 : 1,844.27 = 776.99 : x
2. Step 2: Convert to fraction form
   1,336.60/1,844.27 = 776.99/x
3. Step 3: Cross multiply
   1,336.60x = 1,844.27 × 776.99
4. Step 4: Simplify right side
   1,336.60x = 1,432,982.99
5. Step 5: Solve for x
   x = 1,432,982.99/1,336.60
6. Step 6: Final answer
   x = 1,072.11