Finding the Fourth Proportional to 1,739.72, 2,629.31 and 1,709.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,739.72 : 2,629.31 = 1,709.48 : x
2. Step 2: Convert to fraction form
   1,739.72/2,629.31 = 1,709.48/x
3. Step 3: Cross multiply
   1,739.72x = 2,629.31 × 1,709.48
4. Step 4: Simplify right side
   1,739.72x = 4,494,752.86
5. Step 5: Solve for x
   x = 4,494,752.86/1,739.72
6. Step 6: Final answer
   x = 2,583.61