Finding the Fourth Proportional to 1,360.23, 1,877.04 and 770.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,360.23 : 1,877.04 = 770.82 : x
2. Step 2: Convert to fraction form
   1,360.23/1,877.04 = 770.82/x
3. Step 3: Cross multiply
   1,360.23x = 1,877.04 × 770.82
4. Step 4: Simplify right side
   1,360.23x = 1,446,859.97
5. Step 5: Solve for x
   x = 1,446,859.97/1,360.23
6. Step 6: Final answer
   x = 1,063.69