Finding the Fourth Proportional to 1,826.18, 2,520.15 and 998.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,826.18 : 2,520.15 = 998.18 : x
2. Step 2: Convert to fraction form
   1,826.18/2,520.15 = 998.18/x
3. Step 3: Cross multiply
   1,826.18x = 2,520.15 × 998.18
4. Step 4: Simplify right side
   1,826.18x = 2,515,563.33
5. Step 5: Solve for x
   x = 2,515,563.33/1,826.18
6. Step 6: Final answer
   x = 1,377.50