Finding the Fourth Proportional to 2,123.12, 2,926.81 and 1,491.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.12 : 2,926.81 = 1,491.73 : x
2. Step 2: Convert to fraction form
   2,123.12/2,926.81 = 1,491.73/x
3. Step 3: Cross multiply
   2,123.12x = 2,926.81 × 1,491.73
4. Step 4: Simplify right side
   2,123.12x = 4,366,010.28
5. Step 5: Solve for x
   x = 4,366,010.28/2,123.12
6. Step 6: Final answer
   x = 2,056.41