Finding the Fourth Proportional to 2,171.71, 2,997.71 and 1,375.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,171.71 : 2,997.71 = 1,375.58 : x
2. Step 2: Convert to fraction form
   2,171.71/2,997.71 = 1,375.58/x
3. Step 3: Cross multiply
   2,171.71x = 2,997.71 × 1,375.58
4. Step 4: Simplify right side
   2,171.71x = 4,123,595.70
5. Step 5: Solve for x
   x = 4,123,595.70/2,171.71
6. Step 6: Final answer
   x = 1,898.78