Finding the Fourth Proportional to 2,030.46, 3,046.57 and 991.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,030.46 : 3,046.57 = 991.37 : x
2. Step 2: Convert to fraction form
   2,030.46/3,046.57 = 991.37/x
3. Step 3: Cross multiply
   2,030.46x = 3,046.57 × 991.37
4. Step 4: Simplify right side
   2,030.46x = 3,020,260.39
5. Step 5: Solve for x
   x = 3,020,260.39/2,030.46
6. Step 6: Final answer
   x = 1,487.48