Finding the Fourth Proportional to 1,061.26, 1,465.25 and 663.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.26 : 1,465.25 = 663.53 : x
2. Step 2: Convert to fraction form
   1,061.26/1,465.25 = 663.53/x
3. Step 3: Cross multiply
   1,061.26x = 1,465.25 × 663.53
4. Step 4: Simplify right side
   1,061.26x = 972,237.33
5. Step 5: Solve for x
   x = 972,237.33/1,061.26
6. Step 6: Final answer
   x = 916.12