Finding the Fourth Proportional to 2,798.45, 4,196.31 and 1,042.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,798.45 : 4,196.31 = 1,042.77 : x
2. Step 2: Convert to fraction form
   2,798.45/4,196.31 = 1,042.77/x
3. Step 3: Cross multiply
   2,798.45x = 4,196.31 × 1,042.77
4. Step 4: Simplify right side
   2,798.45x = 4,375,798.00
5. Step 5: Solve for x
   x = 4,375,798.00/2,798.45
6. Step 6: Final answer
   x = 1,563.65