Finding the Fourth Proportional to 2,681.05, 3,699.98 and 1,618.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,681.05 : 3,699.98 = 1,618.80 : x
2. Step 2: Convert to fraction form
   2,681.05/3,699.98 = 1,618.80/x
3. Step 3: Cross multiply
   2,681.05x = 3,699.98 × 1,618.80
4. Step 4: Simplify right side
   2,681.05x = 5,989,527.62
5. Step 5: Solve for x
   x = 5,989,527.62/2,681.05
6. Step 6: Final answer
   x = 2,234.02