Finding the Fourth Proportional to 2,650.12, 3,655.32 and 2,152.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,650.12 : 3,655.32 = 2,152.76 : x
2. Step 2: Convert to fraction form
   2,650.12/3,655.32 = 2,152.76/x
3. Step 3: Cross multiply
   2,650.12x = 3,655.32 × 2,152.76
4. Step 4: Simplify right side
   2,650.12x = 7,869,026.68
5. Step 5: Solve for x
   x = 7,869,026.68/2,650.12
6. Step 6: Final answer
   x = 2,969.31