Finding the Fourth Proportional to 2,956.55, 4,434.47 and 765.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,956.55 : 4,434.47 = 765.10 : x
2. Step 2: Convert to fraction form
   2,956.55/4,434.47 = 765.10/x
3. Step 3: Cross multiply
   2,956.55x = 4,434.47 × 765.10
4. Step 4: Simplify right side
   2,956.55x = 3,392,821.89
5. Step 5: Solve for x
   x = 3,392,821.89/2,956.55
6. Step 6: Final answer
   x = 1,147.56