Finding the Fourth Proportional to 1,566.76, 2,162.28 and 1,042.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,566.76 : 2,162.28 = 1,042.96 : x
2. Step 2: Convert to fraction form
   1,566.76/2,162.28 = 1,042.96/x
3. Step 3: Cross multiply
   1,566.76x = 2,162.28 × 1,042.96
4. Step 4: Simplify right side
   1,566.76x = 2,255,171.55
5. Step 5: Solve for x
   x = 2,255,171.55/1,566.76
6. Step 6: Final answer
   x = 1,439.39