Finding the Fourth Proportional to 2,518.98, 3,476.68 and 1,609.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,518.98 : 3,476.68 = 1,609.91 : x
2. Step 2: Convert to fraction form
   2,518.98/3,476.68 = 1,609.91/x
3. Step 3: Cross multiply
   2,518.98x = 3,476.68 × 1,609.91
4. Step 4: Simplify right side
   2,518.98x = 5,597,141.90
5. Step 5: Solve for x
   x = 5,597,141.90/2,518.98
6. Step 6: Final answer
   x = 2,221.99