Finding the Fourth Proportional to 2,124.89, 3,170.29 and 1,813.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,124.89 : 3,170.29 = 1,813.18 : x
2. Step 2: Convert to fraction form
   2,124.89/3,170.29 = 1,813.18/x
3. Step 3: Cross multiply
   2,124.89x = 3,170.29 × 1,813.18
4. Step 4: Simplify right side
   2,124.89x = 5,748,306.42
5. Step 5: Solve for x
   x = 5,748,306.42/2,124.89
6. Step 6: Final answer
   x = 2,705.23