Finding the Fourth Proportional to 1,789.39, 2,466.75 and 1,256.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,789.39 : 2,466.75 = 1,256.61 : x
2. Step 2: Convert to fraction form
   1,789.39/2,466.75 = 1,256.61/x
3. Step 3: Cross multiply
   1,789.39x = 2,466.75 × 1,256.61
4. Step 4: Simplify right side
   1,789.39x = 3,099,742.72
5. Step 5: Solve for x
   x = 3,099,742.72/1,789.39
6. Step 6: Final answer
   x = 1,732.29