Finding the Fourth Proportional to 2,706.21, 4,039.67 and 2,503.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,706.21 : 4,039.67 = 2,503.10 : x
2. Step 2: Convert to fraction form
   2,706.21/4,039.67 = 2,503.10/x
3. Step 3: Cross multiply
   2,706.21x = 4,039.67 × 2,503.10
4. Step 4: Simplify right side
   2,706.21x = 10,111,714.33
5. Step 5: Solve for x
   x = 10,111,714.33/2,706.21
6. Step 6: Final answer
   x = 3,736.49