Finding the Fourth Proportional to 3,657.06, 5,046.72 and 2,085.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,657.06 : 5,046.72 = 2,085.15 : x
2. Step 2: Convert to fraction form
   3,657.06/5,046.72 = 2,085.15/x
3. Step 3: Cross multiply
   3,657.06x = 5,046.72 × 2,085.15
4. Step 4: Simplify right side
   3,657.06x = 10,523,168.21
5. Step 5: Solve for x
   x = 10,523,168.21/3,657.06
6. Step 6: Final answer
   x = 2,877.49