Finding the Fourth Proportional to 2,076.70, 3,114.52 and 615.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.70 : 3,114.52 = 615.51 : x
2. Step 2: Convert to fraction form
   2,076.70/3,114.52 = 615.51/x
3. Step 3: Cross multiply
   2,076.70x = 3,114.52 × 615.51
4. Step 4: Simplify right side
   2,076.70x = 1,917,007.34
5. Step 5: Solve for x
   x = 1,917,007.34/2,076.70
6. Step 6: Final answer
   x = 923.10