Finding the Fourth Proportional to 3,384.91, 5,076.89 and 1,012.95

Step by Step Solution

1. Step 1: Write the proportion equation
   3,384.91 : 5,076.89 = 1,012.95 : x
2. Step 2: Convert to fraction form
   3,384.91/5,076.89 = 1,012.95/x
3. Step 3: Cross multiply
   3,384.91x = 5,076.89 × 1,012.95
4. Step 4: Simplify right side
   3,384.91x = 5,142,635.73
5. Step 5: Solve for x
   x = 5,142,635.73/3,384.91
6. Step 6: Final answer
   x = 1,519.28