Finding the Fourth Proportional to 2,778.34, 4,165.86 and 1,046.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,778.34 : 4,165.86 = 1,046.56 : x
2. Step 2: Convert to fraction form
   2,778.34/4,165.86 = 1,046.56/x
3. Step 3: Cross multiply
   2,778.34x = 4,165.86 × 1,046.56
4. Step 4: Simplify right side
   2,778.34x = 4,359,822.44
5. Step 5: Solve for x
   x = 4,359,822.44/2,778.34
6. Step 6: Final answer
   x = 1,569.22