Finding the Fourth Proportional to 2,773.10, 4,158.27 and 923.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,773.10 : 4,158.27 = 923.57 : x
2. Step 2: Convert to fraction form
   2,773.10/4,158.27 = 923.57/x
3. Step 3: Cross multiply
   2,773.10x = 4,158.27 × 923.57
4. Step 4: Simplify right side
   2,773.10x = 3,840,463.82
5. Step 5: Solve for x
   x = 3,840,463.82/2,773.10
6. Step 6: Final answer
   x = 1,384.90