Finding the Fourth Proportional to 3,784.24, 5,224.28 and 2,458.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,784.24 : 5,224.28 = 2,458.72 : x
2. Step 2: Convert to fraction form
   3,784.24/5,224.28 = 2,458.72/x
3. Step 3: Cross multiply
   3,784.24x = 5,224.28 × 2,458.72
4. Step 4: Simplify right side
   3,784.24x = 12,845,041.72
5. Step 5: Solve for x
   x = 12,845,041.72/3,784.24
6. Step 6: Final answer
   x = 3,394.35