Finding the Fourth Proportional to 2,773.72, 4,161.17 and 924.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,773.72 : 4,161.17 = 924.72 : x
2. Step 2: Convert to fraction form
   2,773.72/4,161.17 = 924.72/x
3. Step 3: Cross multiply
   2,773.72x = 4,161.17 × 924.72
4. Step 4: Simplify right side
   2,773.72x = 3,847,917.12
5. Step 5: Solve for x
   x = 3,847,917.12/2,773.72
6. Step 6: Final answer
   x = 1,387.28