Finding the Fourth Proportional to 2,076.52, 3,114.72 and 615.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.52 : 3,114.72 = 615.64 : x
2. Step 2: Convert to fraction form
   2,076.52/3,114.72 = 615.64/x
3. Step 3: Cross multiply
   2,076.52x = 3,114.72 × 615.64
4. Step 4: Simplify right side
   2,076.52x = 1,917,546.22
5. Step 5: Solve for x
   x = 1,917,546.22/2,076.52
6. Step 6: Final answer
   x = 923.44