Finding the Fourth Proportional to 2,084.73, 3,125.47 and 990.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,084.73 : 3,125.47 = 990.42 : x
2. Step 2: Convert to fraction form
   2,084.73/3,125.47 = 990.42/x
3. Step 3: Cross multiply
   2,084.73x = 3,125.47 × 990.42
4. Step 4: Simplify right side
   2,084.73x = 3,095,528.00
5. Step 5: Solve for x
   x = 3,095,528.00/2,084.73
6. Step 6: Final answer
   x = 1,484.86