Finding the Fourth Proportional to 2,958.17, 4,436.72 and 766.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,958.17 : 4,436.72 = 766.77 : x
2. Step 2: Convert to fraction form
   2,958.17/4,436.72 = 766.77/x
3. Step 3: Cross multiply
   2,958.17x = 4,436.72 × 766.77
4. Step 4: Simplify right side
   2,958.17x = 3,401,930.51
5. Step 5: Solve for x
   x = 3,401,930.51/2,958.17
6. Step 6: Final answer
   x = 1,150.01