Finding the Fourth Proportional to 1,288.82, 1,931.54 and 595.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,288.82 : 1,931.54 = 595.39 : x
2. Step 2: Convert to fraction form
   1,288.82/1,931.54 = 595.39/x
3. Step 3: Cross multiply
   1,288.82x = 1,931.54 × 595.39
4. Step 4: Simplify right side
   1,288.82x = 1,150,019.60
5. Step 5: Solve for x
   x = 1,150,019.60/1,288.82
6. Step 6: Final answer
   x = 892.30