Finding the Fourth Proportional to 2,076.48, 3,114.18 and 615.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.48 : 3,114.18 = 615.24 : x
2. Step 2: Convert to fraction form
   2,076.48/3,114.18 = 615.24/x
3. Step 3: Cross multiply
   2,076.48x = 3,114.18 × 615.24
4. Step 4: Simplify right side
   2,076.48x = 1,915,968.10
5. Step 5: Solve for x
   x = 1,915,968.10/2,076.48
6. Step 6: Final answer
   x = 922.70