Finding the Fourth Proportional to 2,227.76, 3,339.64 and 1,131.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,227.76 : 3,339.64 = 1,131.56 : x
2. Step 2: Convert to fraction form
   2,227.76/3,339.64 = 1,131.56/x
3. Step 3: Cross multiply
   2,227.76x = 3,339.64 × 1,131.56
4. Step 4: Simplify right side
   2,227.76x = 3,779,003.04
5. Step 5: Solve for x
   x = 3,779,003.04/2,227.76
6. Step 6: Final answer
   x = 1,696.32