Finding the Fourth Proportional to 1,061.55, 1,464.82 and 663.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.55 : 1,464.82 = 663.53 : x
2. Step 2: Convert to fraction form
   1,061.55/1,464.82 = 663.53/x
3. Step 3: Cross multiply
   1,061.55x = 1,464.82 × 663.53
4. Step 4: Simplify right side
   1,061.55x = 971,955.60
5. Step 5: Solve for x
   x = 971,955.60/1,061.55
6. Step 6: Final answer
   x = 915.60