Finding the Fourth Proportional to 2,641.16, 3,962.84 and 1,159.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,641.16 : 3,962.84 = 1,159.61 : x
2. Step 2: Convert to fraction form
   2,641.16/3,962.84 = 1,159.61/x
3. Step 3: Cross multiply
   2,641.16x = 3,962.84 × 1,159.61
4. Step 4: Simplify right side
   2,641.16x = 4,595,348.89
5. Step 5: Solve for x
   x = 4,595,348.89/2,641.16
6. Step 6: Final answer
   x = 1,739.90