Finding the Fourth Proportional to 1,156.93, 1,596.61 and 659.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,156.93 : 1,596.61 = 659.57 : x
2. Step 2: Convert to fraction form
   1,156.93/1,596.61 = 659.57/x
3. Step 3: Cross multiply
   1,156.93x = 1,596.61 × 659.57
4. Step 4: Simplify right side
   1,156.93x = 1,053,066.43
5. Step 5: Solve for x
   x = 1,053,066.43/1,156.93
6. Step 6: Final answer
   x = 910.22