Finding the Fourth Proportional to 2,704.56, 4,055.76 and 972.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,704.56 : 4,055.76 = 972.24 : x
2. Step 2: Convert to fraction form
   2,704.56/4,055.76 = 972.24/x
3. Step 3: Cross multiply
   2,704.56x = 4,055.76 × 972.24
4. Step 4: Simplify right side
   2,704.56x = 3,943,172.10
5. Step 5: Solve for x
   x = 3,943,172.10/2,704.56
6. Step 6: Final answer
   x = 1,457.97