Finding the Fourth Proportional to 1,797.57, 2,478.71 and 1,230.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,797.57 : 2,478.71 = 1,230.46 : x
2. Step 2: Convert to fraction form
   1,797.57/2,478.71 = 1,230.46/x
3. Step 3: Cross multiply
   1,797.57x = 2,478.71 × 1,230.46
4. Step 4: Simplify right side
   1,797.57x = 3,049,950.39
5. Step 5: Solve for x
   x = 3,049,950.39/1,797.57
6. Step 6: Final answer
   x = 1,696.71