Finding the Fourth Proportional to 2,097.95, 3,145.56 and 1,173.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,097.95 : 3,145.56 = 1,173.61 : x
2. Step 2: Convert to fraction form
   2,097.95/3,145.56 = 1,173.61/x
3. Step 3: Cross multiply
   2,097.95x = 3,145.56 × 1,173.61
4. Step 4: Simplify right side
   2,097.95x = 3,691,654.80
5. Step 5: Solve for x
   x = 3,691,654.80/2,097.95
6. Step 6: Final answer
   x = 1,759.65