Finding the Fourth Proportional to 1,723.59, 2,378.82 and 1,618.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,723.59 : 2,378.82 = 1,618.05 : x
2. Step 2: Convert to fraction form
   1,723.59/2,378.82 = 1,618.05/x
3. Step 3: Cross multiply
   1,723.59x = 2,378.82 × 1,618.05
4. Step 4: Simplify right side
   1,723.59x = 3,849,049.70
5. Step 5: Solve for x
   x = 3,849,049.70/1,723.59
6. Step 6: Final answer
   x = 2,233.16