Finding the Fourth Proportional to 1,980.72, 2,733.66 and 1,141.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,980.72 : 2,733.66 = 1,141.38 : x
2. Step 2: Convert to fraction form
   1,980.72/2,733.66 = 1,141.38/x
3. Step 3: Cross multiply
   1,980.72x = 2,733.66 × 1,141.38
4. Step 4: Simplify right side
   1,980.72x = 3,120,144.85
5. Step 5: Solve for x
   x = 3,120,144.85/1,980.72
6. Step 6: Final answer
   x = 1,575.26