Finding the Fourth Proportional to 2,042.47, 2,821.18 and 1,776.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,042.47 : 2,821.18 = 1,776.38 : x
2. Step 2: Convert to fraction form
   2,042.47/2,821.18 = 1,776.38/x
3. Step 3: Cross multiply
   2,042.47x = 2,821.18 × 1,776.38
4. Step 4: Simplify right side
   2,042.47x = 5,011,487.73
5. Step 5: Solve for x
   x = 5,011,487.73/2,042.47
6. Step 6: Final answer
   x = 2,453.65