Finding the Fourth Proportional to 2,697.60, 3,722.18 and 1,635.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,697.60 : 3,722.18 = 1,635.15 : x
2. Step 2: Convert to fraction form
   2,697.60/3,722.18 = 1,635.15/x
3. Step 3: Cross multiply
   2,697.60x = 3,722.18 × 1,635.15
4. Step 4: Simplify right side
   2,697.60x = 6,086,314.45
5. Step 5: Solve for x
   x = 6,086,314.45/2,697.60
6. Step 6: Final answer
   x = 2,256.20