Finding the Fourth Proportional to 2,416.51, 3,624.18 and 772.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,416.51 : 3,624.18 = 772.72 : x
2. Step 2: Convert to fraction form
   2,416.51/3,624.18 = 772.72/x
3. Step 3: Cross multiply
   2,416.51x = 3,624.18 × 772.72
4. Step 4: Simplify right side
   2,416.51x = 2,800,464.41
5. Step 5: Solve for x
   x = 2,800,464.41/2,416.51
6. Step 6: Final answer
   x = 1,158.89