Finding the Fourth Proportional to 1,788.39, 2,465.37 and 1,255.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,788.39 : 2,465.37 = 1,255.61 : x
2. Step 2: Convert to fraction form
   1,788.39/2,465.37 = 1,255.61/x
3. Step 3: Cross multiply
   1,788.39x = 2,465.37 × 1,255.61
4. Step 4: Simplify right side
   1,788.39x = 3,095,530.90
5. Step 5: Solve for x
   x = 3,095,530.90/1,788.39
6. Step 6: Final answer
   x = 1,730.90