Finding the Fourth Proportional to 1,469.59, 2,203.87 and 689.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,469.59 : 2,203.87 = 689.96 : x
2. Step 2: Convert to fraction form
   1,469.59/2,203.87 = 689.96/x
3. Step 3: Cross multiply
   1,469.59x = 2,203.87 × 689.96
4. Step 4: Simplify right side
   1,469.59x = 1,520,570.69
5. Step 5: Solve for x
   x = 1,520,570.69/1,469.59
6. Step 6: Final answer
   x = 1,034.69