Finding the Fourth Proportional to 2,756.38, 4,134.71 and 1,112.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,756.38 : 4,134.71 = 1,112.72 : x
2. Step 2: Convert to fraction form
   2,756.38/4,134.71 = 1,112.72/x
3. Step 3: Cross multiply
   2,756.38x = 4,134.71 × 1,112.72
4. Step 4: Simplify right side
   2,756.38x = 4,600,788.63
5. Step 5: Solve for x
   x = 4,600,788.63/2,756.38
6. Step 6: Final answer
   x = 1,669.14