Finding the Fourth Proportional to 1,404.89, 2,107.32 and 1,097

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.89 : 2,107.32 = 1,097 : x
2. Step 2: Convert to fraction form
   1,404.89/2,107.32 = 1,097/x
3. Step 3: Cross multiply
   1,404.89x = 2,107.32 × 1,097
4. Step 4: Simplify right side
   1,404.89x = 2,311,730.04
5. Step 5: Solve for x
   x = 2,311,730.04/1,404.89
6. Step 6: Final answer
   x = 1,645.49