Finding the Fourth Proportional to 1,192.31, 1,645.55 and 695.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,192.31 : 1,645.55 = 695.22 : x
2. Step 2: Convert to fraction form
   1,192.31/1,645.55 = 695.22/x
3. Step 3: Cross multiply
   1,192.31x = 1,645.55 × 695.22
4. Step 4: Simplify right side
   1,192.31x = 1,144,015.79
5. Step 5: Solve for x
   x = 1,144,015.79/1,192.31
6. Step 6: Final answer
   x = 959.50