Finding the Fourth Proportional to 3,655.05, 5,473.32 and 2,418.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,655.05 : 5,473.32 = 2,418.72 : x
2. Step 2: Convert to fraction form
   3,655.05/5,473.32 = 2,418.72/x
3. Step 3: Cross multiply
   3,655.05x = 5,473.32 × 2,418.72
4. Step 4: Simplify right side
   3,655.05x = 13,238,428.55
5. Step 5: Solve for x
   x = 13,238,428.55/3,655.05
6. Step 6: Final answer
   x = 3,621.96