Finding the Fourth Proportional to 1,789.56, 2,466.18 and 1,291.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,789.56 : 2,466.18 = 1,291.28 : x
2. Step 2: Convert to fraction form
   1,789.56/2,466.18 = 1,291.28/x
3. Step 3: Cross multiply
   1,789.56x = 2,466.18 × 1,291.28
4. Step 4: Simplify right side
   1,789.56x = 3,184,516.58
5. Step 5: Solve for x
   x = 3,184,516.58/1,789.56
6. Step 6: Final answer
   x = 1,779.50