Finding the Fourth Proportional to 1,132.02, 1,696.20 and 645.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,132.02 : 1,696.20 = 645.42 : x
2. Step 2: Convert to fraction form
   1,132.02/1,696.20 = 645.42/x
3. Step 3: Cross multiply
   1,132.02x = 1,696.20 × 645.42
4. Step 4: Simplify right side
   1,132.02x = 1,094,761.40
5. Step 5: Solve for x
   x = 1,094,761.40/1,132.02
6. Step 6: Final answer
   x = 967.09