Finding the Fourth Proportional to 2,629.10, 3,626.34 and 2,131.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,629.10 : 3,626.34 = 2,131.76 : x
2. Step 2: Convert to fraction form
   2,629.10/3,626.34 = 2,131.76/x
3. Step 3: Cross multiply
   2,629.10x = 3,626.34 × 2,131.76
4. Step 4: Simplify right side
   2,629.10x = 7,730,486.56
5. Step 5: Solve for x
   x = 7,730,486.56/2,629.10
6. Step 6: Final answer
   x = 2,940.35