Finding the Fourth Proportional to 3,697.39, 5,102.20 and 2,018.47

Step by Step Solution

1. Step 1: Write the proportion equation
   3,697.39 : 5,102.20 = 2,018.47 : x
2. Step 2: Convert to fraction form
   3,697.39/5,102.20 = 2,018.47/x
3. Step 3: Cross multiply
   3,697.39x = 5,102.20 × 2,018.47
4. Step 4: Simplify right side
   3,697.39x = 10,298,635.77
5. Step 5: Solve for x
   x = 10,298,635.77/3,697.39
6. Step 6: Final answer
   x = 2,785.38