Finding the Fourth Proportional to 3,499.29, 4,827.42 and 2,605.05

Step by Step Solution

1. Step 1: Write the proportion equation
   3,499.29 : 4,827.42 = 2,605.05 : x
2. Step 2: Convert to fraction form
   3,499.29/4,827.42 = 2,605.05/x
3. Step 3: Cross multiply
   3,499.29x = 4,827.42 × 2,605.05
4. Step 4: Simplify right side
   3,499.29x = 12,575,670.47
5. Step 5: Solve for x
   x = 12,575,670.47/3,499.29
6. Step 6: Final answer
   x = 3,593.78