Finding the Fourth Proportional to 1,866.58, 2,575.89 and 1,080.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,866.58 : 2,575.89 = 1,080.82 : x
2. Step 2: Convert to fraction form
   1,866.58/2,575.89 = 1,080.82/x
3. Step 3: Cross multiply
   1,866.58x = 2,575.89 × 1,080.82
4. Step 4: Simplify right side
   1,866.58x = 2,784,073.43
5. Step 5: Solve for x
   x = 2,784,073.43/1,866.58
6. Step 6: Final answer
   x = 1,491.54