Finding the Fourth Proportional to 4,990.57, 7,484.94 and 1,870.27

Step by Step Solution

1. Step 1: Write the proportion equation
   4,990.57 : 7,484.94 = 1,870.27 : x
2. Step 2: Convert to fraction form
   4,990.57/7,484.94 = 1,870.27/x
3. Step 3: Cross multiply
   4,990.57x = 7,484.94 × 1,870.27
4. Step 4: Simplify right side
   4,990.57x = 13,998,858.73
5. Step 5: Solve for x
   x = 13,998,858.73/4,990.57
6. Step 6: Final answer
   x = 2,805.06