Finding the Fourth Proportional to 2,774.10, 4,158.43 and 1,385.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,774.10 : 4,158.43 = 1,385.36 : x
2. Step 2: Convert to fraction form
   2,774.10/4,158.43 = 1,385.36/x
3. Step 3: Cross multiply
   2,774.10x = 4,158.43 × 1,385.36
4. Step 4: Simplify right side
   2,774.10x = 5,760,898.33
5. Step 5: Solve for x
   x = 5,760,898.33/2,774.10
6. Step 6: Final answer
   x = 2,076.67