Finding the Fourth Proportional to 1,146.09, 1,581.71 and 697.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,146.09 : 1,581.71 = 697.92 : x
2. Step 2: Convert to fraction form
   1,146.09/1,581.71 = 697.92/x
3. Step 3: Cross multiply
   1,146.09x = 1,581.71 × 697.92
4. Step 4: Simplify right side
   1,146.09x = 1,103,903.55
5. Step 5: Solve for x
   x = 1,103,903.55/1,146.09
6. Step 6: Final answer
   x = 963.19