Finding the Fourth Proportional to 2,962.10, 4,443.40 and 770.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,962.10 : 4,443.40 = 770.82 : x
2. Step 2: Convert to fraction form
   2,962.10/4,443.40 = 770.82/x
3. Step 3: Cross multiply
   2,962.10x = 4,443.40 × 770.82
4. Step 4: Simplify right side
   2,962.10x = 3,425,079.21
5. Step 5: Solve for x
   x = 3,425,079.21/2,962.10
6. Step 6: Final answer
   x = 1,156.30