Finding the Fourth Proportional to 2,073.21, 2,861.15 and 1,374.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,073.21 : 2,861.15 = 1,374.09 : x
2. Step 2: Convert to fraction form
   2,073.21/2,861.15 = 1,374.09/x
3. Step 3: Cross multiply
   2,073.21x = 2,861.15 × 1,374.09
4. Step 4: Simplify right side
   2,073.21x = 3,931,470.73
5. Step 5: Solve for x
   x = 3,931,470.73/2,073.21
6. Step 6: Final answer
   x = 1,896.32