Finding the Fourth Proportional to 3,491.34, 5,236.38 and 992.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,491.34 : 5,236.38 = 992.69 : x
2. Step 2: Convert to fraction form
   3,491.34/5,236.38 = 992.69/x
3. Step 3: Cross multiply
   3,491.34x = 5,236.38 × 992.69
4. Step 4: Simplify right side
   3,491.34x = 5,198,095.52
5. Step 5: Solve for x
   x = 5,198,095.52/3,491.34
6. Step 6: Final answer
   x = 1,488.86