Finding the Fourth Proportional to 1,984.34, 2,738.55 and 1,322.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,984.34 : 2,738.55 = 1,322.31 : x
2. Step 2: Convert to fraction form
   1,984.34/2,738.55 = 1,322.31/x
3. Step 3: Cross multiply
   1,984.34x = 2,738.55 × 1,322.31
4. Step 4: Simplify right side
   1,984.34x = 3,621,212.05
5. Step 5: Solve for x
   x = 3,621,212.05/1,984.34
6. Step 6: Final answer
   x = 1,824.89