Finding the Fourth Proportional to 1,839.43, 2,537.73 and 1,210.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,839.43 : 2,537.73 = 1,210.30 : x
2. Step 2: Convert to fraction form
   1,839.43/2,537.73 = 1,210.30/x
3. Step 3: Cross multiply
   1,839.43x = 2,537.73 × 1,210.30
4. Step 4: Simplify right side
   1,839.43x = 3,071,408.27
5. Step 5: Solve for x
   x = 3,071,408.27/1,839.43
6. Step 6: Final answer
   x = 1,669.76