Finding the Fourth Proportional to 2,874.88, 3,968.76 and 1,948.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,874.88 : 3,968.76 = 1,948.24 : x
2. Step 2: Convert to fraction form
   2,874.88/3,968.76 = 1,948.24/x
3. Step 3: Cross multiply
   2,874.88x = 3,968.76 × 1,948.24
4. Step 4: Simplify right side
   2,874.88x = 7,732,096.98
5. Step 5: Solve for x
   x = 7,732,096.98/2,874.88
6. Step 6: Final answer
   x = 2,689.54