Finding the Fourth Proportional to 1,300.07, 1,794.33 and 776.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.07 : 1,794.33 = 776.21 : x
2. Step 2: Convert to fraction form
   1,300.07/1,794.33 = 776.21/x
3. Step 3: Cross multiply
   1,300.07x = 1,794.33 × 776.21
4. Step 4: Simplify right side
   1,300.07x = 1,392,767.92
5. Step 5: Solve for x
   x = 1,392,767.92/1,300.07
6. Step 6: Final answer
   x = 1,071.30