Finding the Fourth Proportional to 1,880.71, 2,596.57 and 1,208.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,880.71 : 2,596.57 = 1,208.82 : x
2. Step 2: Convert to fraction form
   1,880.71/2,596.57 = 1,208.82/x
3. Step 3: Cross multiply
   1,880.71x = 2,596.57 × 1,208.82
4. Step 4: Simplify right side
   1,880.71x = 3,138,785.75
5. Step 5: Solve for x
   x = 3,138,785.75/1,880.71
6. Step 6: Final answer
   x = 1,668.94