Finding the Fourth Proportional to 2,883.27, 3,976.79 and 1,987.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,883.27 : 3,976.79 = 1,987.30 : x
2. Step 2: Convert to fraction form
   2,883.27/3,976.79 = 1,987.30/x
3. Step 3: Cross multiply
   2,883.27x = 3,976.79 × 1,987.30
4. Step 4: Simplify right side
   2,883.27x = 7,903,054.89
5. Step 5: Solve for x
   x = 7,903,054.89/2,883.27
6. Step 6: Final answer
   x = 2,741.00