Finding the Fourth Proportional to 2,880.27, 3,973.59 and 2,136.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,880.27 : 3,973.59 = 2,136.06 : x
2. Step 2: Convert to fraction form
   2,880.27/3,973.59 = 2,136.06/x
3. Step 3: Cross multiply
   2,880.27x = 3,973.59 × 2,136.06
4. Step 4: Simplify right side
   2,880.27x = 8,487,826.66
5. Step 5: Solve for x
   x = 8,487,826.66/2,880.27
6. Step 6: Final answer
   x = 2,946.89