Finding the Fourth Proportional to 2,610.63, 3,909.06 and 2,088.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,610.63 : 3,909.06 = 2,088.18 : x
2. Step 2: Convert to fraction form
   2,610.63/3,909.06 = 2,088.18/x
3. Step 3: Cross multiply
   2,610.63x = 3,909.06 × 2,088.18
4. Step 4: Simplify right side
   2,610.63x = 8,162,820.91
5. Step 5: Solve for x
   x = 8,162,820.91/2,610.63
6. Step 6: Final answer
   x = 3,126.76