Finding the Fourth Proportional to 2,030.46, 3,046.56 and 991.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,030.46 : 3,046.56 = 991.38 : x
2. Step 2: Convert to fraction form
   2,030.46/3,046.56 = 991.38/x
3. Step 3: Cross multiply
   2,030.46x = 3,046.56 × 991.38
4. Step 4: Simplify right side
   2,030.46x = 3,020,298.65
5. Step 5: Solve for x
   x = 3,020,298.65/2,030.46
6. Step 6: Final answer
   x = 1,487.49