Finding the Fourth Proportional to 2,345.88, 3,519.67 and 1,097.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,345.88 : 3,519.67 = 1,097.57 : x
2. Step 2: Convert to fraction form
   2,345.88/3,519.67 = 1,097.57/x
3. Step 3: Cross multiply
   2,345.88x = 3,519.67 × 1,097.57
4. Step 4: Simplify right side
   2,345.88x = 3,863,084.20
5. Step 5: Solve for x
   x = 3,863,084.20/2,345.88
6. Step 6: Final answer
   x = 1,646.75