Finding the Fourth Proportional to 3,746.89, 5,175.31 and 2,806.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,746.89 : 5,175.31 = 2,806.89 : x
2. Step 2: Convert to fraction form
   3,746.89/5,175.31 = 2,806.89/x
3. Step 3: Cross multiply
   3,746.89x = 5,175.31 × 2,806.89
4. Step 4: Simplify right side
   3,746.89x = 14,526,504.72
5. Step 5: Solve for x
   x = 14,526,504.72/3,746.89
6. Step 6: Final answer
   x = 3,876.95