Finding the Fourth Proportional to 3,321.48, 4,981.92 and 1,012.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,321.48 : 4,981.92 = 1,012.98 : x
2. Step 2: Convert to fraction form
   3,321.48/4,981.92 = 1,012.98/x
3. Step 3: Cross multiply
   3,321.48x = 4,981.92 × 1,012.98
4. Step 4: Simplify right side
   3,321.48x = 5,046,600.31
5. Step 5: Solve for x
   x = 5,046,600.31/3,321.48
6. Step 6: Final answer
   x = 1,519.38