Finding the Fourth Proportional to 3,157.89, 4,737.52 and 1,210.09

Step by Step Solution

1. Step 1: Write the proportion equation
   3,157.89 : 4,737.52 = 1,210.09 : x
2. Step 2: Convert to fraction form
   3,157.89/4,737.52 = 1,210.09/x
3. Step 3: Cross multiply
   3,157.89x = 4,737.52 × 1,210.09
4. Step 4: Simplify right side
   3,157.89x = 5,732,825.58
5. Step 5: Solve for x
   x = 5,732,825.58/3,157.89
6. Step 6: Final answer
   x = 1,815.40