Finding the Fourth Proportional to 2,150.10, 3,225.48 and 688.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,150.10 : 3,225.48 = 688.93 : x
2. Step 2: Convert to fraction form
   2,150.10/3,225.48 = 688.93/x
3. Step 3: Cross multiply
   2,150.10x = 3,225.48 × 688.93
4. Step 4: Simplify right side
   2,150.10x = 2,222,129.94
5. Step 5: Solve for x
   x = 2,222,129.94/2,150.10
6. Step 6: Final answer
   x = 1,033.50