Finding the Fourth Proportional to 1,192.58, 1,645.72 and 695.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,192.58 : 1,645.72 = 695.31 : x
2. Step 2: Convert to fraction form
   1,192.58/1,645.72 = 695.31/x
3. Step 3: Cross multiply
   1,192.58x = 1,645.72 × 695.31
4. Step 4: Simplify right side
   1,192.58x = 1,144,285.57
5. Step 5: Solve for x
   x = 1,144,285.57/1,192.58
6. Step 6: Final answer
   x = 959.50