Finding the Fourth Proportional to 1,997.55, 2,993.56 and 1,021.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,997.55 : 2,993.56 = 1,021.62 : x
2. Step 2: Convert to fraction form
   1,997.55/2,993.56 = 1,021.62/x
3. Step 3: Cross multiply
   1,997.55x = 2,993.56 × 1,021.62
4. Step 4: Simplify right side
   1,997.55x = 3,058,280.77
5. Step 5: Solve for x
   x = 3,058,280.77/1,997.55
6. Step 6: Final answer
   x = 1,531.02