Finding the Fourth Proportional to 3,156.89, 4,736.02 and 1,209.09

Step by Step Solution

1. Step 1: Write the proportion equation
   3,156.89 : 4,736.02 = 1,209.09 : x
2. Step 2: Convert to fraction form
   3,156.89/4,736.02 = 1,209.09/x
3. Step 3: Cross multiply
   3,156.89x = 4,736.02 × 1,209.09
4. Step 4: Simplify right side
   3,156.89x = 5,726,291.43
5. Step 5: Solve for x
   x = 5,726,291.43/3,156.89
6. Step 6: Final answer
   x = 1,813.90