Finding the Fourth Proportional to 4,499.29, 6,208.72 and 2,820.63

Step by Step Solution

1. Step 1: Write the proportion equation
   4,499.29 : 6,208.72 = 2,820.63 : x
2. Step 2: Convert to fraction form
   4,499.29/6,208.72 = 2,820.63/x
3. Step 3: Cross multiply
   4,499.29x = 6,208.72 × 2,820.63
4. Step 4: Simplify right side
   4,499.29x = 17,512,501.89
5. Step 5: Solve for x
   x = 17,512,501.89/4,499.29
6. Step 6: Final answer
   x = 3,892.28