Finding the Fourth Proportional to 2,551.76, 3,820.12 and 2,488.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,551.76 : 3,820.12 = 2,488.88 : x
2. Step 2: Convert to fraction form
   2,551.76/3,820.12 = 2,488.88/x
3. Step 3: Cross multiply
   2,551.76x = 3,820.12 × 2,488.88
4. Step 4: Simplify right side
   2,551.76x = 9,507,820.27
5. Step 5: Solve for x
   x = 9,507,820.27/2,551.76
6. Step 6: Final answer
   x = 3,725.99