Finding the Fourth Proportional to 2,720.50, 3,754.30 and 1,478.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,720.50 : 3,754.30 = 1,478.50 : x
2. Step 2: Convert to fraction form
   2,720.50/3,754.30 = 1,478.50/x
3. Step 3: Cross multiply
   2,720.50x = 3,754.30 × 1,478.50
4. Step 4: Simplify right side
   2,720.50x = 5,550,732.55
5. Step 5: Solve for x
   x = 5,550,732.55/2,720.50
6. Step 6: Final answer
   x = 2,040.34