Finding the Fourth Proportional to 1,805.82, 2,491.53 and 1,142.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,805.82 : 2,491.53 = 1,142.96 : x
2. Step 2: Convert to fraction form
   1,805.82/2,491.53 = 1,142.96/x
3. Step 3: Cross multiply
   1,805.82x = 2,491.53 × 1,142.96
4. Step 4: Simplify right side
   1,805.82x = 2,847,706.67
5. Step 5: Solve for x
   x = 2,847,706.67/1,805.82
6. Step 6: Final answer
   x = 1,576.96