Finding the Fourth Proportional to 2,414.18, 3,621.54 and 770.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,414.18 : 3,621.54 = 770.14 : x
2. Step 2: Convert to fraction form
   2,414.18/3,621.54 = 770.14/x
3. Step 3: Cross multiply
   2,414.18x = 3,621.54 × 770.14
4. Step 4: Simplify right side
   2,414.18x = 2,789,092.82
5. Step 5: Solve for x
   x = 2,789,092.82/2,414.18
6. Step 6: Final answer
   x = 1,155.30