Finding the Fourth Proportional to 1,300.70, 1,795.05 and 770.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.70 : 1,795.05 = 770.00 : x
2. Step 2: Convert to fraction form
   1,300.70/1,795.05 = 770.00/x
3. Step 3: Cross multiply
   1,300.70x = 1,795.05 × 770.00
4. Step 4: Simplify right side
   1,300.70x = 1,382,179.52
5. Step 5: Solve for x
   x = 1,382,179.52/1,300.70
6. Step 6: Final answer
   x = 1,062.64