Finding the Fourth Proportional to 2,076.37, 3,113.47 and 615.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.37 : 3,113.47 = 615.33 : x
2. Step 2: Convert to fraction form
   2,076.37/3,113.47 = 615.33/x
3. Step 3: Cross multiply
   2,076.37x = 3,113.47 × 615.33
4. Step 4: Simplify right side
   2,076.37x = 1,915,811.50
5. Step 5: Solve for x
   x = 1,915,811.50/2,076.37
6. Step 6: Final answer
   x = 922.67