Finding the Fourth Proportional to 2,549.80, 3,517.86 and 1,618.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,549.80 : 3,517.86 = 1,618.84 : x
2. Step 2: Convert to fraction form
   2,549.80/3,517.86 = 1,618.84/x
3. Step 3: Cross multiply
   2,549.80x = 3,517.86 × 1,618.84
4. Step 4: Simplify right side
   2,549.80x = 5,694,852.48
5. Step 5: Solve for x
   x = 5,694,852.48/2,549.80
6. Step 6: Final answer
   x = 2,233.45