Finding the Fourth Proportional to 2,167.34, 2,990.49 and 1,283.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,167.34 : 2,990.49 = 1,283.27 : x
2. Step 2: Convert to fraction form
   2,167.34/2,990.49 = 1,283.27/x
3. Step 3: Cross multiply
   2,167.34x = 2,990.49 × 1,283.27
4. Step 4: Simplify right side
   2,167.34x = 3,837,606.10
5. Step 5: Solve for x
   x = 3,837,606.10/2,167.34
6. Step 6: Final answer
   x = 1,770.65