Finding the Fourth Proportional to 2,171.15, 2,996.18 and 1,176.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,171.15 : 2,996.18 = 1,176.43 : x
2. Step 2: Convert to fraction form
   2,171.15/2,996.18 = 1,176.43/x
3. Step 3: Cross multiply
   2,171.15x = 2,996.18 × 1,176.43
4. Step 4: Simplify right side
   2,171.15x = 3,524,775.17
5. Step 5: Solve for x
   x = 3,524,775.17/2,171.15
6. Step 6: Final answer
   x = 1,623.46