Finding the Fourth Proportional to 3,645.83, 5,461.38 and 2,238.45

Step by Step Solution

1. Step 1: Write the proportion equation
   3,645.83 : 5,461.38 = 2,238.45 : x
2. Step 2: Convert to fraction form
   3,645.83/5,461.38 = 2,238.45/x
3. Step 3: Cross multiply
   3,645.83x = 5,461.38 × 2,238.45
4. Step 4: Simplify right side
   3,645.83x = 12,225,026.06
5. Step 5: Solve for x
   x = 12,225,026.06/3,645.83
6. Step 6: Final answer
   x = 3,353.16