Finding the Fourth Proportional to 1,748.37, 2,620.83 and 1,253.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,748.37 : 2,620.83 = 1,253.61 : x
2. Step 2: Convert to fraction form
   1,748.37/2,620.83 = 1,253.61/x
3. Step 3: Cross multiply
   1,748.37x = 2,620.83 × 1,253.61
4. Step 4: Simplify right side
   1,748.37x = 3,285,503.40
5. Step 5: Solve for x
   x = 3,285,503.40/1,748.37
6. Step 6: Final answer
   x = 1,879.18