Finding the Fourth Proportional to 1,065.56, 1,597.32 and 768.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,065.56 : 1,597.32 = 768.83 : x
2. Step 2: Convert to fraction form
   1,065.56/1,597.32 = 768.83/x
3. Step 3: Cross multiply
   1,065.56x = 1,597.32 × 768.83
4. Step 4: Simplify right side
   1,065.56x = 1,228,059.55
5. Step 5: Solve for x
   x = 1,228,059.55/1,065.56
6. Step 6: Final answer
   x = 1,152.51