Finding the Fourth Proportional to 2,046.09, 3,068.64 and 990.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,046.09 : 3,068.64 = 990.87 : x
2. Step 2: Convert to fraction form
   2,046.09/3,068.64 = 990.87/x
3. Step 3: Cross multiply
   2,046.09x = 3,068.64 × 990.87
4. Step 4: Simplify right side
   2,046.09x = 3,040,623.32
5. Step 5: Solve for x
   x = 3,040,623.32/2,046.09
6. Step 6: Final answer
   x = 1,486.07