Finding the Fourth Proportional to 2,078.88, 2,868.80 and 1,182.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,078.88 : 2,868.80 = 1,182.55 : x
2. Step 2: Convert to fraction form
   2,078.88/2,868.80 = 1,182.55/x
3. Step 3: Cross multiply
   2,078.88x = 2,868.80 × 1,182.55
4. Step 4: Simplify right side
   2,078.88x = 3,392,499.44
5. Step 5: Solve for x
   x = 3,392,499.44/2,078.88
6. Step 6: Final answer
   x = 1,631.89