Finding the Fourth Proportional to 2,150.04, 3,224.73 and 688.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,150.04 : 3,224.73 = 688.99 : x
2. Step 2: Convert to fraction form
   2,150.04/3,224.73 = 688.99/x
3. Step 3: Cross multiply
   2,150.04x = 3,224.73 × 688.99
4. Step 4: Simplify right side
   2,150.04x = 2,221,806.72
5. Step 5: Solve for x
   x = 2,221,806.72/2,150.04
6. Step 6: Final answer
   x = 1,033.38