Finding the Fourth Proportional to 2,817.65, 3,886.25 and 2,498.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,817.65 : 3,886.25 = 2,498.99 : x
2. Step 2: Convert to fraction form
   2,817.65/3,886.25 = 2,498.99/x
3. Step 3: Cross multiply
   2,817.65x = 3,886.25 × 2,498.99
4. Step 4: Simplify right side
   2,817.65x = 9,711,667.96
5. Step 5: Solve for x
   x = 9,711,667.96/2,817.65
6. Step 6: Final answer
   x = 3,446.73