Finding the Fourth Proportional to 1,866.96, 2,575.83 and 1,080.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,866.96 : 2,575.83 = 1,080.86 : x
2. Step 2: Convert to fraction form
   1,866.96/2,575.83 = 1,080.86/x
3. Step 3: Cross multiply
   1,866.96x = 2,575.83 × 1,080.86
4. Step 4: Simplify right side
   1,866.96x = 2,784,102.79
5. Step 5: Solve for x
   x = 2,784,102.79/1,866.96
6. Step 6: Final answer
   x = 1,491.25