Finding the Fourth Proportional to 2,980.71, 4,118.66 and 2,144.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,980.71 : 4,118.66 = 2,144.18 : x
2. Step 2: Convert to fraction form
   2,980.71/4,118.66 = 2,144.18/x
3. Step 3: Cross multiply
   2,980.71x = 4,118.66 × 2,144.18
4. Step 4: Simplify right side
   2,980.71x = 8,831,156.02
5. Step 5: Solve for x
   x = 8,831,156.02/2,980.71
6. Step 6: Final answer
   x = 2,962.77