Finding the Fourth Proportional to 3,185.54, 4,779.72 and 1,237.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,185.54 : 4,779.72 = 1,237.89 : x
2. Step 2: Convert to fraction form
   3,185.54/4,779.72 = 1,237.89/x
3. Step 3: Cross multiply
   3,185.54x = 4,779.72 × 1,237.89
4. Step 4: Simplify right side
   3,185.54x = 5,916,767.59
5. Step 5: Solve for x
   x = 5,916,767.59/3,185.54
6. Step 6: Final answer
   x = 1,857.38