Finding the Fourth Proportional to 2,111.02, 3,165.76 and 629.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.02 : 3,165.76 = 629.80 : x
2. Step 2: Convert to fraction form
   2,111.02/3,165.76 = 629.80/x
3. Step 3: Cross multiply
   2,111.02x = 3,165.76 × 629.80
4. Step 4: Simplify right side
   2,111.02x = 1,993,795.65
5. Step 5: Solve for x
   x = 1,993,795.65/2,111.02
6. Step 6: Final answer
   x = 944.47