Finding the Fourth Proportional to 1,821.29, 2,513.37 and 993.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,821.29 : 2,513.37 = 993.29 : x
2. Step 2: Convert to fraction form
   1,821.29/2,513.37 = 993.29/x
3. Step 3: Cross multiply
   1,821.29x = 2,513.37 × 993.29
4. Step 4: Simplify right side
   1,821.29x = 2,496,492.72
5. Step 5: Solve for x
   x = 2,496,492.72/1,821.29
6. Step 6: Final answer
   x = 1,370.73