Finding the Fourth Proportional to 1,789.44, 2,685.12 and 1,097.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,789.44 : 2,685.12 = 1,097.76 : x
2. Step 2: Convert to fraction form
   1,789.44/2,685.12 = 1,097.76/x
3. Step 3: Cross multiply
   1,789.44x = 2,685.12 × 1,097.76
4. Step 4: Simplify right side
   1,789.44x = 2,947,617.33
5. Step 5: Solve for x
   x = 2,947,617.33/1,789.44
6. Step 6: Final answer
   x = 1,647.23