Finding the Fourth Proportional to 1,689.52, 2,331.52 and 953.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,689.52 : 2,331.52 = 953.52 : x
2. Step 2: Convert to fraction form
   1,689.52/2,331.52 = 953.52/x
3. Step 3: Cross multiply
   1,689.52x = 2,331.52 × 953.52
4. Step 4: Simplify right side
   1,689.52x = 2,223,150.95
5. Step 5: Solve for x
   x = 2,223,150.95/1,689.52
6. Step 6: Final answer
   x = 1,315.85