Finding the Fourth Proportional to 2,816.59, 4,234.01 and 2,613.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,816.59 : 4,234.01 = 2,613.69 : x
2. Step 2: Convert to fraction form
   2,816.59/4,234.01 = 2,613.69/x
3. Step 3: Cross multiply
   2,816.59x = 4,234.01 × 2,613.69
4. Step 4: Simplify right side
   2,816.59x = 11,066,389.60
5. Step 5: Solve for x
   x = 11,066,389.60/2,816.59
6. Step 6: Final answer
   x = 3,929.00