Finding the Fourth Proportional to 2,626.25, 3,940.88 and 1,065.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,626.25 : 3,940.88 = 1,065.96 : x
2. Step 2: Convert to fraction form
   2,626.25/3,940.88 = 1,065.96/x
3. Step 3: Cross multiply
   2,626.25x = 3,940.88 × 1,065.96
4. Step 4: Simplify right side
   2,626.25x = 4,200,815.12
5. Step 5: Solve for x
   x = 4,200,815.12/2,626.25
6. Step 6: Final answer
   x = 1,599.55