Finding the Fourth Proportional to 1,156.78, 1,596.32 and 659.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,156.78 : 1,596.32 = 659.46 : x
2. Step 2: Convert to fraction form
   1,156.78/1,596.32 = 659.46/x
3. Step 3: Cross multiply
   1,156.78x = 1,596.32 × 659.46
4. Step 4: Simplify right side
   1,156.78x = 1,052,709.08
5. Step 5: Solve for x
   x = 1,052,709.08/1,156.78
6. Step 6: Final answer
   x = 910.03