Finding the Fourth Proportional to 2,414.06, 3,620.78 and 770.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,414.06 : 3,620.78 = 770.46 : x
2. Step 2: Convert to fraction form
   2,414.06/3,620.78 = 770.46/x
3. Step 3: Cross multiply
   2,414.06x = 3,620.78 × 770.46
4. Step 4: Simplify right side
   2,414.06x = 2,789,678.77
5. Step 5: Solve for x
   x = 2,789,678.77/2,414.06
6. Step 6: Final answer
   x = 1,155.60