Finding the Fourth Proportional to 2,774.04, 4,159.92 and 1,385.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,774.04 : 4,159.92 = 1,385.72 : x
2. Step 2: Convert to fraction form
   2,774.04/4,159.92 = 1,385.72/x
3. Step 3: Cross multiply
   2,774.04x = 4,159.92 × 1,385.72
4. Step 4: Simplify right side
   2,774.04x = 5,764,484.34
5. Step 5: Solve for x
   x = 5,764,484.34/2,774.04
6. Step 6: Final answer
   x = 2,078.01