Finding the Fourth Proportional to 2,628.90, 3,919.86 and 2,534.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,628.90 : 3,919.86 = 2,534.04 : x
2. Step 2: Convert to fraction form
   2,628.90/3,919.86 = 2,534.04/x
3. Step 3: Cross multiply
   2,628.90x = 3,919.86 × 2,534.04
4. Step 4: Simplify right side
   2,628.90x = 9,933,082.03
5. Step 5: Solve for x
   x = 9,933,082.03/2,628.90
6. Step 6: Final answer
   x = 3,778.42