Finding the Fourth Proportional to 1,788.23, 2,664.79 and 1,729.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,788.23 : 2,664.79 = 1,729.50 : x
2. Step 2: Convert to fraction form
   1,788.23/2,664.79 = 1,729.50/x
3. Step 3: Cross multiply
   1,788.23x = 2,664.79 × 1,729.50
4. Step 4: Simplify right side
   1,788.23x = 4,608,754.31
5. Step 5: Solve for x
   x = 4,608,754.31/1,788.23
6. Step 6: Final answer
   x = 2,577.27