Finding the Fourth Proportional to 2,775.72, 4,162.54 and 1,131.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,775.72 : 4,162.54 = 1,131.38 : x
2. Step 2: Convert to fraction form
   2,775.72/4,162.54 = 1,131.38/x
3. Step 3: Cross multiply
   2,775.72x = 4,162.54 × 1,131.38
4. Step 4: Simplify right side
   2,775.72x = 4,709,414.51
5. Step 5: Solve for x
   x = 4,709,414.51/2,775.72
6. Step 6: Final answer
   x = 1,696.65