Finding the Fourth Proportional to 1,300.08, 1,793.94 and 776

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.08 : 1,793.94 = 776 : x
2. Step 2: Convert to fraction form
   1,300.08/1,793.94 = 776/x
3. Step 3: Cross multiply
   1,300.08x = 1,793.94 × 776
4. Step 4: Simplify right side
   1,300.08x = 1,392,097.44
5. Step 5: Solve for x
   x = 1,392,097.44/1,300.08
6. Step 6: Final answer
   x = 1,070.78