Finding the Fourth Proportional to 2,776.58, 4,162.96 and 1,043.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,776.58 : 4,162.96 = 1,043.72 : x
2. Step 2: Convert to fraction form
   2,776.58/4,162.96 = 1,043.72/x
3. Step 3: Cross multiply
   2,776.58x = 4,162.96 × 1,043.72
4. Step 4: Simplify right side
   2,776.58x = 4,344,960.71
5. Step 5: Solve for x
   x = 4,344,960.71/2,776.58
6. Step 6: Final answer
   x = 1,564.86