Finding the Fourth Proportional to 1,626.09, 2,244.72 and 1,187.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,626.09 : 2,244.72 = 1,187.34 : x
2. Step 2: Convert to fraction form
   1,626.09/2,244.72 = 1,187.34/x
3. Step 3: Cross multiply
   1,626.09x = 2,244.72 × 1,187.34
4. Step 4: Simplify right side
   1,626.09x = 2,665,245.84
5. Step 5: Solve for x
   x = 2,665,245.84/1,626.09
6. Step 6: Final answer
   x = 1,639.05