Finding the Fourth Proportional to 7,085.34, 10,629.05 and 2,641.86

Step by Step Solution

1. Step 1: Write the proportion equation
   7,085.34 : 10,629.05 = 2,641.86 : x
2. Step 2: Convert to fraction form
   7,085.34/10,629.05 = 2,641.86/x
3. Step 3: Cross multiply
   7,085.34x = 10,629.05 × 2,641.86
4. Step 4: Simplify right side
   7,085.34x = 28,080,448.82
5. Step 5: Solve for x
   x = 28,080,448.82/7,085.34
6. Step 6: Final answer
   x = 3,963.18