Finding the Fourth Proportional to 3,657.31, 5,046.60 and 2,085.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,657.31 : 5,046.60 = 2,085.10 : x
2. Step 2: Convert to fraction form
   3,657.31/5,046.60 = 2,085.10/x
3. Step 3: Cross multiply
   3,657.31x = 5,046.60 × 2,085.10
4. Step 4: Simplify right side
   3,657.31x = 10,522,665.66
5. Step 5: Solve for x
   x = 10,522,665.66/3,657.31
6. Step 6: Final answer
   x = 2,877.16