Finding the Fourth Proportional to 2,960.83, 4,415.50 and 2,921.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,960.83 : 4,415.50 = 2,921.10 : x
2. Step 2: Convert to fraction form
   2,960.83/4,415.50 = 2,921.10/x
3. Step 3: Cross multiply
   2,960.83x = 4,415.50 × 2,921.10
4. Step 4: Simplify right side
   2,960.83x = 12,898,117.05
5. Step 5: Solve for x
   x = 12,898,117.05/2,960.83
6. Step 6: Final answer
   x = 4,356.26