Finding the Fourth Proportional to 2,748.40, 4,119.72 and 1,776.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,748.40 : 4,119.72 = 1,776.56 : x
2. Step 2: Convert to fraction form
   2,748.40/4,119.72 = 1,776.56/x
3. Step 3: Cross multiply
   2,748.40x = 4,119.72 × 1,776.56
4. Step 4: Simplify right side
   2,748.40x = 7,318,929.76
5. Step 5: Solve for x
   x = 7,318,929.76/2,748.40
6. Step 6: Final answer
   x = 2,662.98