Finding the Fourth Proportional to 2,635.76, 3,636.42 and 1,691.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,635.76 : 3,636.42 = 1,691.47 : x
2. Step 2: Convert to fraction form
   2,635.76/3,636.42 = 1,691.47/x
3. Step 3: Cross multiply
   2,635.76x = 3,636.42 × 1,691.47
4. Step 4: Simplify right side
   2,635.76x = 6,150,895.34
5. Step 5: Solve for x
   x = 6,150,895.34/2,635.76
6. Step 6: Final answer
   x = 2,333.63