Finding the Fourth Proportional to 2,705.47, 4,059.55 and 1,245.65

Step by Step Solution

1. Step 1: Write the proportion equation
   2,705.47 : 4,059.55 = 1,245.65 : x
2. Step 2: Convert to fraction form
   2,705.47/4,059.55 = 1,245.65/x
3. Step 3: Cross multiply
   2,705.47x = 4,059.55 × 1,245.65
4. Step 4: Simplify right side
   2,705.47x = 5,056,759.72
5. Step 5: Solve for x
   x = 5,056,759.72/2,705.47
6. Step 6: Final answer
   x = 1,869.09