Finding the Fourth Proportional to 2,736.67, 4,085.82 and 2,478.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,736.67 : 4,085.82 = 2,478.39 : x
2. Step 2: Convert to fraction form
   2,736.67/4,085.82 = 2,478.39/x
3. Step 3: Cross multiply
   2,736.67x = 4,085.82 × 2,478.39
4. Step 4: Simplify right side
   2,736.67x = 10,126,255.43
5. Step 5: Solve for x
   x = 10,126,255.43/2,736.67
6. Step 6: Final answer
   x = 3,700.21