Finding the Fourth Proportional to 1,336.59, 1,844.18 and 776.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,336.59 : 1,844.18 = 776.74 : x
2. Step 2: Convert to fraction form
   1,336.59/1,844.18 = 776.74/x
3. Step 3: Cross multiply
   1,336.59x = 1,844.18 × 776.74
4. Step 4: Simplify right side
   1,336.59x = 1,432,456.76
5. Step 5: Solve for x
   x = 1,432,456.76/1,336.59
6. Step 6: Final answer
   x = 1,071.72