Finding the Fourth Proportional to 2,748.42, 4,123.25 and 874.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,748.42 : 4,123.25 = 874.42 : x
2. Step 2: Convert to fraction form
   2,748.42/4,123.25 = 874.42/x
3. Step 3: Cross multiply
   2,748.42x = 4,123.25 × 874.42
4. Step 4: Simplify right side
   2,748.42x = 3,605,441.80
5. Step 5: Solve for x
   x = 3,605,441.80/2,748.42
6. Step 6: Final answer
   x = 1,311.82