Finding the Fourth Proportional to 1,063.40, 1,592.78 and 514.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,063.40 : 1,592.78 = 514.42 : x
2. Step 2: Convert to fraction form
   1,063.40/1,592.78 = 514.42/x
3. Step 3: Cross multiply
   1,063.40x = 1,592.78 × 514.42
4. Step 4: Simplify right side
   1,063.40x = 819,357.89
5. Step 5: Solve for x
   x = 819,357.89/1,063.40
6. Step 6: Final answer
   x = 770.51