Finding the Fourth Proportional to 2,962.57, 4,443.87 and 771.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,962.57 : 4,443.87 = 771.32 : x
2. Step 2: Convert to fraction form
   2,962.57/4,443.87 = 771.32/x
3. Step 3: Cross multiply
   2,962.57x = 4,443.87 × 771.32
4. Step 4: Simplify right side
   2,962.57x = 3,427,623.59
5. Step 5: Solve for x
   x = 3,427,623.59/2,962.57
6. Step 6: Final answer
   x = 1,156.98