Finding the Fourth Proportional to 1,109.83, 1,532.12 and 690.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,109.83 : 1,532.12 = 690.32 : x
2. Step 2: Convert to fraction form
   1,109.83/1,532.12 = 690.32/x
3. Step 3: Cross multiply
   1,109.83x = 1,532.12 × 690.32
4. Step 4: Simplify right side
   1,109.83x = 1,057,651.36
5. Step 5: Solve for x
   x = 1,057,651.36/1,109.83
6. Step 6: Final answer
   x = 952.98