Finding the Fourth Proportional to 1,723.21, 2,573.59 and 1,377.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,723.21 : 2,573.59 = 1,377.07 : x
2. Step 2: Convert to fraction form
   1,723.21/2,573.59 = 1,377.07/x
3. Step 3: Cross multiply
   1,723.21x = 2,573.59 × 1,377.07
4. Step 4: Simplify right side
   1,723.21x = 3,544,013.58
5. Step 5: Solve for x
   x = 3,544,013.58/1,723.21
6. Step 6: Final answer
   x = 2,056.63