Finding the Fourth Proportional to 1,300.66, 1,794.18 and 776.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.66 : 1,794.18 = 776.32 : x
2. Step 2: Convert to fraction form
   1,300.66/1,794.18 = 776.32/x
3. Step 3: Cross multiply
   1,300.66x = 1,794.18 × 776.32
4. Step 4: Simplify right side
   1,300.66x = 1,392,857.82
5. Step 5: Solve for x
   x = 1,392,857.82/1,300.66
6. Step 6: Final answer
   x = 1,070.89