Finding the Fourth Proportional to 1,360.04, 1,876.82 and 770.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,360.04 : 1,876.82 = 770.56 : x
2. Step 2: Convert to fraction form
   1,360.04/1,876.82 = 770.56/x
3. Step 3: Cross multiply
   1,360.04x = 1,876.82 × 770.56
4. Step 4: Simplify right side
   1,360.04x = 1,446,202.42
5. Step 5: Solve for x
   x = 1,446,202.42/1,360.04
6. Step 6: Final answer
   x = 1,063.35