Finding the Fourth Proportional to 2,167.56, 2,991.18 and 1,283.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,167.56 : 2,991.18 = 1,283.34 : x
2. Step 2: Convert to fraction form
   2,167.56/2,991.18 = 1,283.34/x
3. Step 3: Cross multiply
   2,167.56x = 2,991.18 × 1,283.34
4. Step 4: Simplify right side
   2,167.56x = 3,838,709.75
5. Step 5: Solve for x
   x = 3,838,709.75/2,167.56
6. Step 6: Final answer
   x = 1,770.98