Finding the Fourth Proportional to 2,077.56, 3,115.49 and 922.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,077.56 : 3,115.49 = 922.50 : x
2. Step 2: Convert to fraction form
   2,077.56/3,115.49 = 922.50/x
3. Step 3: Cross multiply
   2,077.56x = 3,115.49 × 922.50
4. Step 4: Simplify right side
   2,077.56x = 2,874,034.91
5. Step 5: Solve for x
   x = 2,874,034.91/2,077.56
6. Step 6: Final answer
   x = 1,383.37