Finding the Fourth Proportional to 1,777.58, 2,452.65 and 1,078.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,777.58 : 2,452.65 = 1,078.82 : x
2. Step 2: Convert to fraction form
   1,777.58/2,452.65 = 1,078.82/x
3. Step 3: Cross multiply
   1,777.58x = 2,452.65 × 1,078.82
4. Step 4: Simplify right side
   1,777.58x = 2,645,969.96
5. Step 5: Solve for x
   x = 2,645,969.96/1,777.58
6. Step 6: Final answer
   x = 1,488.52