Finding the Fourth Proportional to 2,961.79, 4,442.52 and 1,112.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,961.79 : 4,442.52 = 1,112.76 : x
2. Step 2: Convert to fraction form
   2,961.79/4,442.52 = 1,112.76/x
3. Step 3: Cross multiply
   2,961.79x = 4,442.52 × 1,112.76
4. Step 4: Simplify right side
   2,961.79x = 4,943,458.56
5. Step 5: Solve for x
   x = 4,943,458.56/2,961.79
6. Step 6: Final answer
   x = 1,669.08