Finding the Fourth Proportional to 3,185.57, 4,775.50 and 1,237.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,185.57 : 4,775.50 = 1,237.31 : x
2. Step 2: Convert to fraction form
   3,185.57/4,775.50 = 1,237.31/x
3. Step 3: Cross multiply
   3,185.57x = 4,775.50 × 1,237.31
4. Step 4: Simplify right side
   3,185.57x = 5,908,773.91
5. Step 5: Solve for x
   x = 5,908,773.91/3,185.57
6. Step 6: Final answer
   x = 1,854.86